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		}

		.outline-item-single .outline-expander::before,
		.outline-item-single .outline-expander:hover::before {
			display: none;
		}

		.outline-item-open>.outline-item>.outline-expander::before {
			content: "";
		}

		.outline-children {
			display: none;
		}

		.info-panel-tab-wrapper {
			display: none;
		}

		.outline-item-open>.outline-children {
			display: block;
		}

		.typora-export .outline-item {
			padding-top: 1px;
			padding-bottom: 1px;
		}

		.typora-export .outline-item:hover {
			margin-right: -8px;
			border-right-width: 8px;
			border-right-style: solid;
			border-right-color: transparent;
		}

		.typora-export .outline-expander::before {
			content: "+";
			font-family: inherit;
			top: -1px;
		}

		.typora-export .outline-expander:hover::before,
		.typora-export .outline-item-open>.outline-item>.outline-expander::before {
			content: "−";
		}

		.typora-export-collapse-outline .outline-children {
			display: none;
		}

		.typora-export-collapse-outline .outline-item-open>.outline-children,
		.typora-export-no-collapse-outline .outline-children {
			display: block;
		}

		.typora-export-no-collapse-outline .outline-expander::before {
			content: "" !important;
		}

		.typora-export-show-outline .outline-item-active>.outline-item .outline-label {
			font-weight: 700;
		}

		.md-inline-math-container mjx-container {
			zoom: 0.95;
		}

		mjx-container {
			break-inside: avoid;
		}


		.CodeMirror {
			height: auto;
		}

		.CodeMirror.cm-s-inner {
			background: inherit;
		}

		.CodeMirror-scroll {
			overflow: auto hidden;
			z-index: 3;
		}

		.CodeMirror-gutter-filler,
		.CodeMirror-scrollbar-filler {
			background-color: rgb(255, 255, 255);
		}

		.CodeMirror-gutters {
			border-right-width: 1px;
			border-right-style: solid;
			border-right-color: rgb(221, 221, 221);
			background: inherit;
			white-space: nowrap;
		}

		.CodeMirror-linenumber {
			padding: 0px 3px 0px 5px;
			text-align: right;
			color: rgb(153, 153, 153);
		}

		.cm-s-inner .cm-keyword {
			color: rgb(119, 0, 136);
		}

		.cm-s-inner .cm-atom,
		.cm-s-inner.cm-atom {
			color: rgb(34, 17, 153);
		}

		.cm-s-inner .cm-number {
			color: rgb(17, 102, 68);
		}

		.cm-s-inner .cm-def {
			color: rgb(0, 0, 255);
		}

		.cm-s-inner .cm-variable {
			color: rgb(0, 0, 0);
		}

		.cm-s-inner .cm-variable-2 {
			color: rgb(0, 85, 170);
		}

		.cm-s-inner .cm-variable-3 {
			color: rgb(0, 136, 85);
		}

		.cm-s-inner .cm-string {
			color: rgb(170, 17, 17);
		}

		.cm-s-inner .cm-property {
			color: rgb(0, 0, 0);
		}

		.cm-s-inner .cm-operator {
			color: rgb(152, 26, 26);
		}

		.cm-s-inner .cm-comment,
		.cm-s-inner.cm-comment {
			color: rgb(170, 85, 0);
		}

		.cm-s-inner .cm-string-2 {
			color: rgb(255, 85, 0);
		}

		.cm-s-inner .cm-meta {
			color: rgb(85, 85, 85);
		}

		.cm-s-inner .cm-qualifier {
			color: rgb(85, 85, 85);
		}

		.cm-s-inner .cm-builtin {
			color: rgb(51, 0, 170);
		}

		.cm-s-inner .cm-bracket {
			color: rgb(153, 153, 119);
		}

		.cm-s-inner .cm-tag {
			color: rgb(17, 119, 0);
		}

		.cm-s-inner .cm-attribute {
			color: rgb(0, 0, 204);
		}

		.cm-s-inner .cm-header,
		.cm-s-inner.cm-header {
			color: rgb(0, 0, 255);
		}

		.cm-s-inner .cm-quote,
		.cm-s-inner.cm-quote {
			color: rgb(0, 153, 0);
		}

		.cm-s-inner .cm-hr,
		.cm-s-inner.cm-hr {
			color: rgb(153, 153, 153);
		}

		.cm-s-inner .cm-link,
		.cm-s-inner.cm-link {
			color: rgb(0, 0, 204);
		}

		.cm-negative {
			color: rgb(221, 68, 68);
		}

		.cm-positive {
			color: rgb(34, 153, 34);
		}

		.cm-header,
		.cm-strong {
			font-weight: 700;
		}

		.cm-del {
			text-decoration: line-through;
		}

		.cm-em {
			font-style: italic;
		}

		.cm-link {
			text-decoration: underline;
		}

		.cm-error {
			color: red;
		}

		.cm-invalidchar {
			color: red;
		}

		.cm-constant {
			color: rgb(38, 139, 210);
		}

		.cm-defined {
			color: rgb(181, 137, 0);
		}

		div.CodeMirror span.CodeMirror-matchingbracket {
			color: rgb(0, 255, 0);
		}

		div.CodeMirror span.CodeMirror-nonmatchingbracket {
			color: rgb(255, 34, 34);
		}

		.cm-s-inner .CodeMirror-activeline-background {
			background: inherit;
		}

		.CodeMirror {
			position: relative;
			overflow: hidden;
		}

		.CodeMirror-scroll {
			height: 100%;
			outline: 0px;
			position: relative;
			box-sizing: content-box;
			background: inherit;
		}

		.CodeMirror-sizer {
			position: relative;
		}

		.CodeMirror-gutter-filler,
		.CodeMirror-hscrollbar,
		.CodeMirror-scrollbar-filler,
		.CodeMirror-vscrollbar {
			position: absolute;
			z-index: 6;
			display: none;
			outline: 0px;
		}

		.CodeMirror-vscrollbar {
			right: 0px;
			top: 0px;
			overflow: hidden;
		}

		.CodeMirror-hscrollbar {
			bottom: 0px;
			left: 0px;
			overflow: auto hidden;
		}

		.CodeMirror-scrollbar-filler {
			right: 0px;
			bottom: 0px;
		}

		.CodeMirror-gutter-filler {
			left: 0px;
			bottom: 0px;
		}

		.CodeMirror-gutters {
			position: absolute;
			left: 0px;
			top: 0px;
			padding-bottom: 10px;
			z-index: 3;
			overflow-y: hidden;
		}

		.CodeMirror-gutter {
			white-space: normal;
			height: 100%;
			box-sizing: content-box;
			padding-bottom: 30px;
			margin-bottom: -32px;
			display: inline-block;
		}

		.CodeMirror-gutter-wrapper {
			position: absolute;
			z-index: 4;
			background: 0px 0px !important;
			border: medium !important;
		}

		.CodeMirror-gutter-background {
			position: absolute;
			top: 0px;
			bottom: 0px;
			z-index: 4;
		}

		.CodeMirror-gutter-elt {
			position: absolute;
			cursor: default;
			z-index: 4;
		}

		.CodeMirror-lines {
			cursor: text;
		}

		.CodeMirror pre {
			border-radius: 0px;
			border-width: 0px;
			background: 0px 0px;
			font-family: inherit;
			font-size: inherit;
			margin: 0px;
			white-space: pre;
			overflow-wrap: normal;
			color: inherit;
			z-index: 2;
			position: relative;
			overflow: visible;
		}

		.CodeMirror-wrap pre {
			overflow-wrap: break-word;
			white-space: pre-wrap;
			word-break: normal;
		}

		.CodeMirror-code pre {
			border-right-width: 30px;
			border-right-style: solid;
			border-right-color: transparent;
			width: fit-content;
		}

		.CodeMirror-wrap .CodeMirror-code pre {
			border-right-width: medium;
			border-right-style: none;
			border-right-color: currentcolor;
			width: auto;
		}

		.CodeMirror-linebackground {
			position: absolute;
			inset: 0px;
			z-index: 0;
		}

		.CodeMirror-linewidget {
			position: relative;
			z-index: 2;
			overflow: auto;
		}

		.CodeMirror-wrap .CodeMirror-scroll {
			overflow-x: hidden;
		}

		.CodeMirror-measure {
			position: absolute;
			width: 100%;
			height: 0px;
			overflow: hidden;
			visibility: hidden;
		}

		.CodeMirror-measure pre {
			position: static;
		}

		.CodeMirror div.CodeMirror-cursor {
			position: absolute;
			visibility: hidden;
			border-right-width: medium;
			border-right-style: none;
			border-right-color: currentcolor;
			width: 0px;
		}

		.CodeMirror div.CodeMirror-cursor {
			visibility: hidden;
		}

		.CodeMirror-focused div.CodeMirror-cursor {
			visibility: inherit;
		}

		.cm-searching {
			background: rgba(255, 255, 0, 0.4);
		}

		span.cm-underlined {
			text-decoration: underline;
		}

		span.cm-strikethrough {
			text-decoration: line-through;
		}

		.cm-tw-syntaxerror {
			color: rgb(255, 255, 255);
			background-color: rgb(153, 0, 0);
		}

		.cm-tw-deleted {
			text-decoration: line-through;
		}

		.cm-tw-header5 {
			font-weight: 700;
		}

		.cm-tw-listitem:first-child {
			padding-left: 10px;
		}

		.cm-tw-box {
			border-style: solid;
			border-right-width: 1px;
			border-bottom-width: 1px;
			border-left-width: 1px;
			border-color: inherit;
			border-top-width: 0px !important;
		}

		.cm-tw-underline {
			text-decoration: underline;
		}

		@media print {
			.CodeMirror div.CodeMirror-cursor {
				visibility: hidden;
			}
		}


		/* meyer reset -- http://meyerweb.com/eric/tools/css/reset/ , v2.0 | 20110126 | License: none (public domain) */

		@include-when-export url(https://fonts.googleapis.com/css?family=PT+Serif:400,400italic,700,700italic&subset=latin,cyrillic-ext,cyrillic,latin-ext);

		/* =========== */

		/* pt-serif-regular - latin */
		/* pt-serif-italic - latin */
		/* pt-serif-700 - latin */
		/* pt-serif-700italic - latin */
		:root {
			--active-file-bg-color: #dadada;
			--active-file-bg-color: rgba(32, 43, 51, 0.63);
			--active-file-text-color: white;
			--bg-color: #f3f2ee;
			--text-color: #1f0909;
			--control-text-color: #444;
			--rawblock-edit-panel-bd: #e5e5e5;

			--select-text-bg-color: rgba(32, 43, 51, 0.63);
			--select-text-font-color: white;
		}

		pre {
			--select-text-bg-color: #36284e;
			--select-text-font-color: #fff;
		}

		html {
			font-size: 16px;
			-webkit-font-smoothing: antialiased;
		}

		html,
		body {
			background-color: #f3f2ee;
			font-family: "PT Serif", 'Times New Roman', Times, serif;
			color: #1f0909;
			line-height: 1.5em;
		}

		/*#write {
	overflow-x: auto;
    max-width: initial;
	padding-left: calc(50% - 17em);
    padding-right: calc(50% - 17em);
}

@media (max-width: 36em) {
 	#write {
 		padding-left: 1em;
    	padding-right: 1em;
 	}
}*/

		#write {
			max-width: 40em;
		}

		@media only screen and (min-width: 1400px) {
			#write {
				max-width: 914px;
			}
		}

		ol li {
			list-style-type: decimal;
			list-style-position: outside;
		}

		ul li {
			list-style-type: disc;
			list-style-position: outside;
		}

		ol,
		ul {
			list-style: none;
		}

		blockquote,
		q {
			quotes: none;
		}

		blockquote:before,
		blockquote:after,
		q:before,
		q:after {
			content: '';
			content: none;
		}

		table {
			border-collapse: collapse;
			border-spacing: 0;
		}

		/* styles */

		/* ====== */

		/* headings */

		h1,
		h2,
		h3,
		h4,
		h5,
		h6 {
			font-weight: bold;
		}

		h1 {
			font-size: 1.875em;
			/*30 / 16*/
			line-height: 1.6em;
			/* 48 / 30*/
			margin-top: 2em;
		}

		h2,
		h3 {
			font-size: 1.3125em;
			/*21 / 16*/
			line-height: 1.15;
			/*24 / 21*/
			margin-top: 2.285714em;
			/*48 / 21*/
			margin-bottom: 1.15em;
			/*24 / 21*/
		}

		h3 {
			font-weight: normal;
		}

		h4 {
			font-size: 1.125em;
			/*18 / 16*/
			margin-top: 2.67em;
			/*48 / 18*/
		}

		h5,
		h6 {
			font-size: 1em;
			/*16*/
		}

		h1 {
			border-bottom: 1px solid;
			margin-bottom: 1.875em;
			padding-bottom: 0.8125em;
		}

		/* links */

		a {
			text-decoration: none;
			color: #065588;
		}

		a:hover,
		a:active {
			text-decoration: underline;
		}

		/* block spacing */

		p,
		blockquote,
		.md-fences {
			margin-bottom: 1.5em;
		}

		h1,
		h2,
		h3,
		h4,
		h5,
		h6 {
			margin-bottom: 1.5em;
		}

		/* blockquote */

		blockquote {
			font-style: italic;
			border-left: 5px solid;
			margin-left: 2em;
			padding-left: 1em;
		}

		/* lists */

		ul,
		ol {
			margin: 0 0 1.5em 1.5em;
		}

		/* tables */
		.md-meta,
		.md-before,
		.md-after {
			color: #999;
		}

		table {
			margin-bottom: 1.5em;
			/*24 / 16*/
			font-size: 1em;
			/* width: 100%; */
		}

		thead th,
		tfoot th {
			padding: .25em .25em .25em .4em;
			text-transform: uppercase;
		}

		th {
			text-align: left;
		}

		td {
			vertical-align: top;
			padding: .25em .25em .25em .4em;
		}

		code,
		.md-fences {
			background-color: #dadada;
		}

		code {
			padding-left: 2px;
			padding-right: 2px;
		}

		.md-fences {
			margin-left: 2em;
			margin-bottom: 3em;
			padding-left: 1ch;
			padding-right: 1ch;
		}

		pre,
		code,
		tt {
			font-size: .875em;
			line-height: 1.714285em;
		}

		/* some fixes */

		h1 {
			line-height: 1.3em;
			font-weight: normal;
			margin-bottom: 0.5em;
		}

		p+ul,
		p+ol {
			margin-top: .5em;
		}

		h3+ul,
		h4+ul,
		h5+ul,
		h6+ul,
		h3+ol,
		h4+ol,
		h5+ol,
		h6+ol {
			margin-top: .5em;
		}

		li>ul,
		li>ol {
			margin-top: inherit;
			margin-bottom: 0;
		}

		li ol>li {
			list-style-type: lower-alpha;
		}

		li li ol>li {
			list-style-type: lower-roman;
		}

		h2,
		h3 {
			margin-bottom: .75em;
		}

		hr {
			border-top: none;
			border-right: none;
			border-bottom: 1px solid;
			border-left: none;
		}

		h1 {
			border-color: #c5c5c5;
		}

		blockquote {
			border-color: #bababa;
			color: #656565;
		}

		blockquote ul,
		blockquote ol {
			margin-left: 0;
		}

		.ty-table-edit {
			background-color: transparent;
		}

		thead {
			background-color: #dadada;
		}

		tr:nth-child(even) {
			background: #e8e7e7;
		}

		hr {
			border-color: #c5c5c5;
		}

		.task-list {
			padding-left: 1rem;
		}

		.md-task-list-item {
			padding-left: 1.5rem;
			list-style-type: none;
		}

		.md-task-list-item>input:before {
			content: '\221A';
			display: inline-block;
			width: 1.25rem;
			height: 1.6rem;
			vertical-align: middle;
			text-align: center;
			color: #ddd;
			background-color: #F3F2EE;
		}

		.md-task-list-item>input:checked:before,
		.md-task-list-item>input[checked]:before {
			color: inherit;
		}

		#write pre.md-meta-block {
			min-height: 1.875rem;
			color: #555;
			border: 0px;
			background: transparent;
			margin-top: -4px;
			margin-left: 1em;
			margin-top: 1em;
		}

		.md-image>.md-meta {
			color: #9B5146;
		}

		.md-image>.md-meta {
			font-family: Menlo, 'Ubuntu Mono', Consolas, 'Courier New', 'Microsoft Yahei', 'Hiragino Sans GB', 'WenQuanYi Micro Hei', serif;
		}


		#write>h3.md-focus:before {
			left: -1.5rem;
			color: #999;
			border-color: #999;
		}

		#write>h4.md-focus:before {
			left: -1.5rem;
			top: .25rem;
			color: #999;
			border-color: #999;
		}

		#write>h5.md-focus:before {
			left: -1.5rem;
			top: .0.3125rem;
			color: #999;
			border-color: #999;
		}

		#write>h6.md-focus:before {
			left: -1.5rem;
			top: 0.3125rem;
			color: #999;
			border-color: #999;
		}

		.md-toc:focus .md-toc-content {
			margin-top: 19px;
		}

		.md-toc-content:empty:before {
			color: #065588;
		}

		.md-toc-item {
			color: #065588;
		}

		#write div.md-toc-tooltip {
			background-color: #f3f2ee;
		}

		#typora-sidebar {
			background-color: #f3f2ee;
			-webkit-box-shadow: 0 6px 12px rgba(0, 0, 0, 0.375);
			box-shadow: 0 6px 12px rgba(0, 0, 0, 0.375);
		}

		.pin-outline #typora-sidebar {
			background: inherit;
			box-shadow: none;
			border-right: 1px dashed;
		}

		.pin-outline #typora-sidebar:hover .outline-title-wrapper {
			border-left: 1px dashed;
		}

		.outline-item:hover {
			background-color: #dadada;
			border-left: 28px solid #dadada;
			border-right: 18px solid #dadada;
		}

		.typora-node .outline-item:hover {
			border-right: 28px solid #dadada;
		}

		.outline-expander:before {
			content: "\f0da";
			font-family: FontAwesome;
			font-size: 14px;
			top: 1px;
		}

		.outline-expander:hover:before,
		.outline-item-open>.outline-item>.outline-expander:before {
			content: "\f0d7";
		}

		.modal-content {
			background-color: #f3f2ee;
		}

		.auto-suggest-container ul li {
			list-style-type: none;
		}

		/** UI for electron */

		.megamenu-menu,
		#top-titlebar,
		#top-titlebar *,
		.megamenu-content {
			background: #f3f2ee;
			color: #1f0909;
		}

		.megamenu-menu-header {
			border-bottom: 1px dashed #202B33;
		}

		.megamenu-menu {
			box-shadow: none;
			border-right: 1px dashed;
		}

		header,
		.context-menu,
		.megamenu-content,
		footer {
			font-family: "PT Serif", 'Times New Roman', Times, serif;
			color: #1f0909;
		}

		#megamenu-back-btn {
			color: #1f0909;
			border-color: #1f0909;
		}

		.megamenu-menu-header #megamenu-menu-header-title:before {
			color: #1f0909;
		}

		.megamenu-menu-list li a:hover,
		.megamenu-menu-list li a.active {
			color: inherit;
			background-color: #e8e7df;
		}

		.long-btn:hover {
			background-color: #e8e7df;
		}

		#recent-file-panel tbody tr:nth-child(2n-1) {
			background-color: transparent !important;
		}

		.megamenu-menu-panel tbody tr:hover td:nth-child(2) {
			color: inherit;
		}

		.megamenu-menu-panel .btn {
			background-color: #D2D1D1;
		}

		.btn-default {
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		h1,
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	</style>
	<title>exam</title>
</head>

<body class='typora-export'>
	<!-- me -->
	<header>
		<a class="md-toc-inner" style="" href="#1生日计算">1.【生日计算】</a>
	</header>
	<div class='typora-export-content'>
		<div id='write' class=''>
			<h1 align="center"><strong>互联网软件设计编程题</strong></h1>
			<div class='md-toc' mdtype='toc'>
				<p class="md-toc-content" role="list"><span role="listitem" class="md-toc-item md-toc-h2"
						data-ref="n558"><a class="md-toc-inner" style="" href="#一-编程题"><strong>一、</strong>
							<strong>编程题</strong></a></span><span role="listitem" class="md-toc-item md-toc-h3"
						data-ref="n5"><a class="md-toc-inner" style="" href="#1生日计算">1.【生日计算】</a></span><span
						role="listitem" class="md-toc-item md-toc-h4" data-ref="n574"><a class="md-toc-inner" style=""
							href="#完整代码">完整代码</a></span><span role="listitem" class="md-toc-item md-toc-h3"
						data-ref="n166"><a class="md-toc-inner" style="" href="#2两数计算">2.【两数计算】</a></span><span
						role="listitem" class="md-toc-item md-toc-h4" data-ref="n571"><a class="md-toc-inner" style=""
							href="#完整代码-2">完整代码</a></span><span role="listitem" class="md-toc-item md-toc-h3"
						data-ref="n233"><a class="md-toc-inner" style="" href="#3猜价格">3.【猜价格】</a></span><span
						role="listitem" class="md-toc-item md-toc-h4" data-ref="n577"><a class="md-toc-inner" style=""
							href="#完整代码-3">完整代码</a></span><span role="listitem" class="md-toc-item md-toc-h3"
						data-ref="n294"><a class="md-toc-inner" style="" href="#4列表排序">4.【列表排序】</a></span><span
						role="listitem" class="md-toc-item md-toc-h4" data-ref="n302"><a class="md-toc-inner" style=""
							href="#完整代码-4">完整代码</a></span><span role="listitem" class="md-toc-item md-toc-h3"
						data-ref="n305"><a class="md-toc-inner" style="" href="#5列表中查找数">5.【列表中查找数】</a></span><span
						role="listitem" class="md-toc-item md-toc-h4" data-ref="n595"><a class="md-toc-inner" style=""
							href="#完整代码-5">完整代码</a></span></p>
			</div>
			<p>&nbsp;</p>
			<h2 id='一-编程题'><strong><span>一、</span></strong><span> </span><strong><span>编程题</span></strong></h2>
			<h3 id='1生日计算'><span>1.【生日计算】</span></h3>
			<p><span>1）使用HTML完成题1图中的内容。</span></p>
			<p><img src="../../../private/var/folders/hc/3hxhhd1n7clbtysw7n1t0hpc0000gn/T/com.kingsoft.wpsoffice.mac/wps-liu/ksohtml//wps1.jpg"
					referrerpolicy="no-referrer" alt="img"><span> </span></p>
			<p><span>题1图</span></p>
			<pre class="md-fences md-end-block md-fences-with-lineno ty-contain-cm modeLoaded" spellcheck="false"
				lang="html"><div class="CodeMirror cm-s-inner cm-s-null-scroll CodeMirror-wrap" lang="html"><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 10px; left: 31px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: currentcolor;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 27px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: currentcolor;"><div class="CodeMirror-measure"><div class="CodeMirror-linenumber CodeMirror-gutter-elt"><div>8</div></div></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation" style=""><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: -27px; width: 27px;"></div><div class="CodeMirror-gutter-wrapper CodeMirror-activeline-gutter" style="left: -27px;"><div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show" style="left: 0px; width: 18px;">1</div></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment">&lt;!-- html骨架 --&gt;</span></span></pre>
		</div>
		<div style="position: relative;">
			<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
				<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">2</div>
			</div>
			<pre class=" CodeMirror-line "
				role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">h3</span><span class="cm-tag cm-bracket">&gt;</span>生日计算<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">h3</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
		</div>
		<div style="position: relative;">
			<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
				<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">3</div>
			</div>
			<pre class=" CodeMirror-line "
				role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">hr</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
		</div>
		<div style="position: relative;">
			<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
				<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">4</div>
			</div>
			<pre class=" CodeMirror-line "
				role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">form</span> <span class="cm-attribute">action</span>=<span class="cm-string">""</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
		</div>
		<div style="position: relative;">
			<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
				<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">5</div>
			</div>
			<pre class=" CodeMirror-line "
				role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">label</span> <span class="cm-attribute">for</span>=<span class="cm-string">"birthday"</span><span class="cm-tag cm-bracket">&gt;</span>选择你的生日：<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">label</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
		</div>
		<div style="position: relative;">
			<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
				<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">6</div>
			</div>
			<pre class=" CodeMirror-line "
				role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">input</span> <span class="cm-attribute">id</span>=<span class="cm-string">"birthday"</span> <span class="cm-attribute">type</span>=<span class="cm-string">"date"</span> <span class="cm-attribute">autofocus</span> <span class="cm-attribute">required</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
		</div>
		<div style="position: relative;">
			<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
				<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">7</div>
			</div>
			<pre class=" CodeMirror-line "
				role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">input</span> <span class="cm-attribute">id</span>=<span class="cm-string">"jisuan"</span> <span class="cm-attribute">type</span>=<span class="cm-string">"button"</span> <span class="cm-attribute">value</span>=<span class="cm-string">"计算"</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
		</div>
		<div style="position: relative;">
			<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
				<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
					style="left: 0px; width: 18px;">8</div>
			</div>
			<pre class=" CodeMirror-line "
				role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">form</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
		</div>
	</div>
	</div>
	</div>
	</div>
	</div>
	<div
		style="position: absolute; height: 0px; width: 1px; border-bottom-width: 0px; border-bottom-style: solid; border-bottom-color: transparent; top: 192px;">
	</div>
	<div class="CodeMirror-gutters" style="height: 192px; left: 0px;">
		<div class="CodeMirror-gutter CodeMirror-linenumbers" style="width: 26px;"></div>
	</div>
	</div>
	</div>
	</pre>
	<p><span>（1） 标题是三级标题，分隔线下面的控件放在表单中。</span></p>
	<pre class="md-fences md-end-block md-fences-with-lineno ty-contain-cm modeLoaded" spellcheck="false"
		lang="html"><div class="CodeMirror cm-s-inner cm-s-null-scroll CodeMirror-wrap" lang="html"><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 10px; left: 31px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: currentcolor;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 27px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: currentcolor;"><div class="CodeMirror-measure"><div class="CodeMirror-linenumber CodeMirror-gutter-elt"><div>8</div></div></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation" style=""><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: -27px; width: 27px;"></div><div class="CodeMirror-gutter-wrapper CodeMirror-activeline-gutter" style="left: -27px;"><div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show" style="left: 0px; width: 18px;">1</div></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment">&lt;!-- 三级标题 --&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">2</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">h3</span><span class="cm-tag cm-bracket">&gt;</span>生日计算<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">h3</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">3</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment">&lt;!-- 分割线 --&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">4</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">hr</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">5</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment">&lt;!-- 表单 --&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">6</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">form</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">7</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;<span class="cm-comment">&lt;!-- 控件 --&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 18px;">8</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">form</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	</div>
	</div>
	</div>
	</div>
	</div>
	<div
		style="position: absolute; height: 0px; width: 1px; border-bottom-width: 0px; border-bottom-style: solid; border-bottom-color: transparent; top: 192px;">
	</div>
	<div class="CodeMirror-gutters" style="height: 192px; left: 0px;">
		<div class="CodeMirror-gutter CodeMirror-linenumbers" style="width: 26px;"></div>
	</div>
	</div>
	</div>
	</pre>
	<p><span>（2） 点击标签日期控件获得焦点，刷新页面时也自动获取焦点，并必须输入。</span></p>
	<pre class="md-fences md-end-block md-fences-with-lineno ty-contain-cm modeLoaded" spellcheck="false"
		lang="html"><div class="CodeMirror cm-s-inner cm-s-null-scroll CodeMirror-wrap" lang="html"><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 10px; left: 31px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: currentcolor;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 27px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: currentcolor;"><div class="CodeMirror-measure"><div class="CodeMirror-linenumber CodeMirror-gutter-elt"><div>4</div></div></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation"><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: -27px; width: 27px;"></div><div class="CodeMirror-gutter-wrapper CodeMirror-activeline-gutter" style="left: -27px;"><div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show" style="left: 0px; width: 18px;">1</div></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment">&lt;!-- label标签的for和input的id一致，点击label时input获得焦点 --&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">2</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">label</span> <span class="cm-attribute">for</span>=<span class="cm-string">"birthday"</span><span class="cm-tag cm-bracket">&gt;</span>选择你的生日：<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">label</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">3</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment">&lt;!-- autofocus自动获取焦点；required必须输入 --&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 18px;">4</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">input</span> <span class="cm-attribute">id</span>=<span class="cm-string">"birthday"</span> <span class="cm-attribute">type</span>=<span class="cm-string">"date"</span> <span class="cm-attribute">autofocus</span> <span class="cm-attribute">required</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	</div>
	</div>
	</div>
	</div>
	</div>
	<div
		style="position: absolute; height: 0px; width: 1px; border-bottom-width: 0px; border-bottom-style: solid; border-bottom-color: transparent; top: 96px;">
	</div>
	<div class="CodeMirror-gutters" style="height: 96px; left: 0px;">
		<div class="CodeMirror-gutter CodeMirror-linenumbers" style="width: 26px;"></div>
	</div>
	</div>
	</div>
	</pre>
	<p><span>2） 使用CSS根据下面的要求修饰元素，符合上图效果。</span></p>
	<p><span>（1） 所有内容居中</span></p>
	<pre class="md-fences md-end-block md-fences-with-lineno ty-contain-cm modeLoaded" spellcheck="false"
		lang="css"><div class="CodeMirror cm-s-inner cm-s-null-scroll CodeMirror-wrap" lang="css"><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 10px; left: 31px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: currentcolor;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 27px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: currentcolor;"><div class="CodeMirror-measure"><div class="CodeMirror-linenumber CodeMirror-gutter-elt"><div>3</div></div></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation"><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: -27px; width: 27px;"></div><div class="CodeMirror-gutter-wrapper CodeMirror-activeline-gutter" style="left: -27px;"><div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show" style="left: 0px; width: 18px;">1</div></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag">body</span> {</span></pre>
	</div>
	<div class="" style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">2</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-property">text-align</span>: <span class="cm-atom">center</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 18px;">3</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;">}</span></pre>
	</div>
	</div>
	</div>
	</div>
	</div>
	</div>
	<div
		style="position: absolute; height: 0px; width: 1px; border-bottom-width: 0px; border-bottom-style: solid; border-bottom-color: transparent; top: 72px;">
	</div>
	<div class="CodeMirror-gutters" style="height: 72px; left: 0px;">
		<div class="CodeMirror-gutter CodeMirror-linenumbers" style="width: 26px;"></div>
	</div>
	</div>
	</div>
	</pre>
	<p><span>（2） 分隔线宽度80%，高度1px；</span></p>
	<pre class="md-fences md-end-block md-fences-with-lineno ty-contain-cm modeLoaded" spellcheck="false"
		lang="css"><div class="CodeMirror cm-s-inner cm-s-null-scroll CodeMirror-wrap" lang="css"><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 10px; left: 31px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: currentcolor;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 27px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: currentcolor;"><div class="CodeMirror-measure"><div class="CodeMirror-linenumber CodeMirror-gutter-elt"><div>4</div></div></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation" style=""><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: -27px; width: 27px;"></div><div class="CodeMirror-gutter-wrapper CodeMirror-activeline-gutter" style="left: -27px;"><div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show" style="left: 0px; width: 18px;">1</div></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag">hr</span> {</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">2</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-property">width</span>: <span class="cm-number">80%</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">3</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-property">height</span>: <span class="cm-number">1px</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 18px;">4</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;">}</span></pre>
	</div>
	</div>
	</div>
	</div>
	</div>
	</div>
	<div
		style="position: absolute; height: 0px; width: 1px; border-bottom-width: 0px; border-bottom-style: solid; border-bottom-color: transparent; top: 96px;">
	</div>
	<div class="CodeMirror-gutters" style="height: 96px; left: 0px;">
		<div class="CodeMirror-gutter CodeMirror-linenumbers" style="width: 26px;"></div>
	</div>
	</div>
	</div>
	</pre>
	<p><span>（3） 表单上外边距20px，表单内所有字体楷体，颜色蓝色；</span></p>
	<pre class="md-fences md-end-block md-fences-with-lineno ty-contain-cm modeLoaded" spellcheck="false"
		lang="css"><div class="CodeMirror cm-s-inner cm-s-null-scroll CodeMirror-wrap" lang="css"><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 10px; left: 31px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: currentcolor;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 27px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: currentcolor;"><div class="CodeMirror-measure"><div class="CodeMirror-linenumber CodeMirror-gutter-elt"><div>5</div></div></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation" style=""><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: -27px; width: 27px;"></div><div class="CodeMirror-gutter-wrapper CodeMirror-activeline-gutter" style="left: -27px;"><div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show" style="left: 0px; width: 18px;">1</div></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag">form</span> {</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">2</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-property">margin-top</span>: <span class="cm-number">20px</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">3</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-property">font-family</span>: <span class="cm-variable">KaiTi</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">4</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-property">color</span>: <span class="cm-keyword">blue</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 18px;">5</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;">}</span></pre>
	</div>
	</div>
	</div>
	</div>
	</div>
	</div>
	<div
		style="position: absolute; height: 0px; width: 1px; border-bottom-width: 0px; border-bottom-style: solid; border-bottom-color: transparent; top: 120px;">
	</div>
	<div class="CodeMirror-gutters" style="height: 120px; left: 0px;">
		<div class="CodeMirror-gutter CodeMirror-linenumbers" style="width: 26px;"></div>
	</div>
	</div>
	</div>
	</pre>
	<p><span>（4） 日期控件边框宽2px，实线，颜色#00a65a；</span></p>
	<pre class="md-fences md-end-block md-fences-with-lineno ty-contain-cm modeLoaded" spellcheck="false"
		lang="css"><div class="CodeMirror cm-s-inner cm-s-null-scroll CodeMirror-wrap" lang="css"><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 10px; left: 31px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: currentcolor;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 27px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: currentcolor;"><div class="CodeMirror-measure"><div class="CodeMirror-linenumber CodeMirror-gutter-elt"><div>3</div></div></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation" style=""><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: -27px; width: 27px;"></div><div class="CodeMirror-gutter-wrapper CodeMirror-activeline-gutter" style="left: -27px;"><div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show" style="left: 0px; width: 18px;">1</div></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag">input</span>[<span class="cm-tag">id</span>=<span class="cm-tag">birthday</span>] {</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">2</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-property">border</span>: <span class="cm-number">2px</span> <span class="cm-atom">solid</span> <span class="cm-atom">#00a65a</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 18px;">3</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;">}</span></pre>
	</div>
	</div>
	</div>
	</div>
	</div>
	</div>
	<div
		style="position: absolute; height: 0px; width: 1px; border-bottom-width: 0px; border-bottom-style: solid; border-bottom-color: transparent; top: 72px;">
	</div>
	<div class="CodeMirror-gutters" style="height: 72px; left: 0px;">
		<div class="CodeMirror-gutter CodeMirror-linenumbers" style="width: 26px;"></div>
	</div>
	</div>
	</div>
	</pre>
	<p><span>（5） 按钮字号18px，字体颜色#1c6ca1；宽度120px，背景色#fff3e0；边框宽1px，实线，颜色#0000ff；</span></p>
	<pre class="md-fences md-end-block md-fences-with-lineno ty-contain-cm modeLoaded" spellcheck="false"
		lang="css"><div class="CodeMirror cm-s-inner cm-s-null-scroll CodeMirror-wrap" lang="css"><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 10px; left: 31px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: currentcolor;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 27px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: currentcolor;"><div class="CodeMirror-measure"><div class="CodeMirror-linenumber CodeMirror-gutter-elt"><div>7</div></div></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation" style=""><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: -27px; width: 27px;"></div><div class="CodeMirror-gutter-wrapper CodeMirror-activeline-gutter" style="left: -27px;"><div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show" style="left: 0px; width: 18px;">1</div></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-builtin">#jisuan</span> {</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">2</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-property">font-size</span>: <span class="cm-number">18px</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">3</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-property">color</span>: <span class="cm-atom">#1c6ca1</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">4</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-property">width</span>: <span class="cm-number">120px</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">5</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-property">background-color</span>: <span class="cm-atom">#fff3e0</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">6</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-property">border</span>: <span class="cm-number">1px</span> <span class="cm-atom">solid</span> <span class="cm-atom">#0000ff</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 18px;">7</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;">}</span></pre>
	</div>
	</div>
	</div>
	</div>
	</div>
	</div>
	<div
		style="position: absolute; height: 0px; width: 1px; border-bottom-width: 0px; border-bottom-style: solid; border-bottom-color: transparent; top: 168px;">
	</div>
	<div class="CodeMirror-gutters" style="height: 168px; left: 0px;">
		<div class="CodeMirror-gutter CodeMirror-linenumbers" style="width: 26px;"></div>
	</div>
	</div>
	</div>
	</pre>
	<p><span>3） 使用JavaScript实现下面的要求：</span></p>
	<p><span> 输入生日后，计算生日的年份是闰年，还是平年，在控制台输出结果。</span></p>
	<pre class="md-fences md-end-block md-fences-with-lineno ty-contain-cm modeLoaded" spellcheck="false"
		lang="javascript"><div class="CodeMirror cm-s-inner cm-s-null-scroll CodeMirror-wrap" lang="javascript"><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 10px; left: 31px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: currentcolor;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 27px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: currentcolor;"><div class="CodeMirror-measure"><div class="CodeMirror-linenumber CodeMirror-gutter-elt"><div>6</div></div></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation" style=""><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: -27px; width: 27px;"></div><div class="CodeMirror-gutter-wrapper CodeMirror-activeline-gutter" style="left: -27px;"><div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show" style="left: 0px; width: 18px;">1</div></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment">// 点击‘计算按钮’，计算年份是否是闰年，控制台输出</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">2</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-variable">cal</span>.<span class="cm-property">onclick</span> <span class="cm-operator">=</span> <span class="cm-keyword">function</span> () {</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">3</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;<span class="cm-comment">// 获取表单传入的日期数据,并转换为date数据类型</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">4</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-keyword">var</span> <span class="cm-def">date</span> <span class="cm-operator">=</span> <span class="cm-keyword">new</span> <span class="cm-variable">Date</span>(<span class="cm-variable">birthday</span>.<span class="cm-property">value</span>);</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">5</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-variable">isLeapYear</span>(<span class="cm-variable-2">date</span>.<span class="cm-property">getFullYear</span>()) <span class="cm-operator">?</span> <span class="cm-variable">console</span>.<span class="cm-property">log</span>(<span class="cm-string">"闰年"</span>) : <span class="cm-variable">console</span>.<span class="cm-property">log</span>(<span class="cm-string">"平年"</span>);</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 18px;">6</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;">};</span></pre>
	</div>
	</div>
	</div>
	</div>
	</div>
	</div>
	<div
		style="position: absolute; height: 0px; width: 1px; border-bottom-width: 0px; border-bottom-style: solid; border-bottom-color: transparent; top: 144px;">
	</div>
	<div class="CodeMirror-gutters" style="height: 144px; left: 0px;">
		<div class="CodeMirror-gutter CodeMirror-linenumbers" style="width: 26px;"></div>
	</div>
	</div>
	</div>
	</pre>
	<pre class="md-fences md-end-block md-fences-with-lineno ty-contain-cm modeLoaded" spellcheck="false"
		lang="javascript"><div class="CodeMirror cm-s-inner cm-s-null-scroll CodeMirror-wrap" lang="javascript"><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 10px; left: 31px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: currentcolor;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 27px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: currentcolor;"><div class="CodeMirror-measure"><div class="CodeMirror-linenumber CodeMirror-gutter-elt"><div>4</div></div></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation" style=""><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: -27px; width: 27px;"></div><div class="CodeMirror-gutter-wrapper CodeMirror-activeline-gutter" style="left: -27px;"><div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show" style="left: 0px; width: 18px;">1</div></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment">// 判断平闰年函数</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">2</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-keyword">function</span> <span class="cm-def">isLeapYear</span>(<span class="cm-def">year</span>) {</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">3</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tab" role="presentation" cm-text="	">  </span><span class="cm-keyword">return</span> <span class="cm-variable-2">year</span> <span class="cm-operator">%</span> <span class="cm-number">4</span> <span class="cm-operator">==</span> <span class="cm-number">0</span> <span class="cm-operator">||</span> <span class="cm-variable-2">year</span> <span class="cm-operator">%</span> <span class="cm-number">100</span> <span class="cm-operator">==</span> <span class="cm-number">0</span> <span class="cm-operator">&amp;&amp;</span> <span class="cm-variable-2">year</span> <span class="cm-operator">%</span> <span class="cm-number">400</span> <span class="cm-operator">!=</span> <span class="cm-number">0</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 18px;">4</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;">}</span></pre>
	</div>
	</div>
	</div>
	</div>
	</div>
	</div>
	<div
		style="position: absolute; height: 0px; width: 1px; border-bottom-width: 0px; border-bottom-style: solid; border-bottom-color: transparent; top: 96px;">
	</div>
	<div class="CodeMirror-gutters" style="height: 96px; left: 0px;">
		<div class="CodeMirror-gutter CodeMirror-linenumbers" style="width: 26px;"></div>
	</div>
	</div>
	</div>
	</pre>
	<blockquote>
		<p style='color:#f00;font-size:30px'>整体代码如下
		<p>
	</blockquote>
	<h4 id='完整代码'><span>完整代码</span></h4>
	<pre class="md-fences md-end-block md-fences-with-lineno ty-contain-cm modeLoaded" spellcheck="false" lang="html"
		style="break-inside: unset;"><div class="CodeMirror cm-s-inner cm-s-null-scroll CodeMirror-wrap" lang="html"><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 10px; left: 40px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: currentcolor;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 36px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: currentcolor;"><div class="CodeMirror-measure"><div class="CodeMirror-linenumber CodeMirror-gutter-elt"><div>61</div></div></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation" style=""><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: -36px; width: 36px;"></div><div class="CodeMirror-gutter-wrapper CodeMirror-activeline-gutter" style="left: -36px;"><div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show" style="left: 0px; width: 27px;">1</div></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment">&lt;!-- </span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">2</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment">1）HTMl</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">3</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment">（1） 标题是三级标题，分隔线下面的控件放在表单中。</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">4</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment">（2） 点击标签日期控件获得焦点，刷新页面时也自动获取焦点，并必须输入。</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">5</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment">2） 使用CSS根据下面的要求修饰元素，符合上图效果。</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">6</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment">（1） 所有内容居中</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">7</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment">（2） 分隔线宽度80%，高度1px；</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">8</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment">（3） 表单上外边距20px，表单内所有字体楷体，颜色蓝色；</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">9</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment">（4） 日期控件边框宽2px，实线，颜色#00a65a；</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 27px;">10</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment">（5） 按钮字号18px，字体颜色#1c6ca1；宽度120px，背景色#fff3e0；边框宽1px，实线，颜色#0000ff；</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">11</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment">3） 使用JavaScript实现下面的要求：</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">12</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;<span class="cm-comment">输入生日后，计算生日的年份是闰年，还是平年，在控制台输出结果。</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">13</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> <span class="cm-comment">--&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">14</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">html</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">15</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">head</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">16</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">style</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">17</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag">body</span> {</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">18</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-property">text-align</span>: <span class="cm-atom">center</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">19</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp;  }</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 27px;">20</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag">hr</span> {</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">21</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-property">width</span>: <span class="cm-number">80%</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">22</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-property">height</span>: <span class="cm-number">1px</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">23</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp;  }</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">24</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag">form</span> {</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">25</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-property">margin-top</span>: <span class="cm-number">20px</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">26</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-property">font-family</span>: <span class="cm-variable">KaiTi</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">27</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-property">color</span>: <span class="cm-keyword">blue</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">28</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp;  }</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">29</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag">input</span>[<span class="cm-tag">id</span>=<span class="cm-string">"birthday"</span>] {</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 27px;">30</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-property">border</span>: <span class="cm-number">2px</span> <span class="cm-atom">solid</span> <span class="cm-atom">#0000ff</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">31</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp;  }</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">32</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag">input</span>[<span class="cm-tag">type</span>=<span class="cm-string">"button"</span>] {</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">33</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-property">font-size</span>: <span class="cm-number">18px</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">34</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-property">color</span>: <span class="cm-atom">#1c6ca1</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">35</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-property">width</span>: <span class="cm-number">120px</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">36</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-property">background-color</span>: <span class="cm-atom">#fff3e0</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">37</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-property">border</span>: <span class="cm-number">1px</span> <span class="cm-atom">solid</span> <span class="cm-atom">#0000ff</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">38</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp;  }</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">39</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">style</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 27px;">40</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">head</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">41</div>
		</div>
		<pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="" cm-zwsp="">
</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">42</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">body</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">43</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">h3</span><span class="cm-tag cm-bracket">&gt;</span>生日计算<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">h3</span><span class="cm-tag cm-bracket">&gt;&lt;</span><span class="cm-tag">hr</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">44</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">form</span> <span class="cm-attribute">action</span>=<span class="cm-string">""</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">45</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">label</span> <span class="cm-attribute">for</span>=<span class="cm-string">"birthday"</span><span class="cm-tag cm-bracket">&gt;</span>选择你的生日：<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">label</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">46</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">input</span> <span class="cm-attribute">id</span>=<span class="cm-string">"birthday"</span> <span class="cm-attribute">type</span>=<span class="cm-string">"date"</span> <span class="cm-attribute">autofocus</span> <span class="cm-attribute">required</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">47</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">input</span> <span class="cm-attribute">id</span>=<span class="cm-string">"jisuan"</span> <span class="cm-attribute">type</span>=<span class="cm-string">"button"</span> <span class="cm-attribute">value</span>=<span class="cm-string">"计算"</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">48</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">form</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">49</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">body</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 27px;">50</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">html</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">51</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">script</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">52</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-comment">//  输入生日后，计算生日的年份是闰年，还是平年，在控制台输出结果。</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">53</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-variable">jisuan</span>.<span class="cm-property">onclick</span> <span class="cm-operator">=</span> <span class="cm-keyword">function</span> () {</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">54</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-keyword">var</span> <span class="cm-def">date</span> <span class="cm-operator">=</span> <span class="cm-keyword">new</span> <span class="cm-variable">Date</span>(<span class="cm-variable">birthday</span>.<span class="cm-property">value</span>);</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">55</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-variable">isLeapYear</span>(<span class="cm-variable-2">date</span>.<span class="cm-property">getFullYear</span>()) <span class="cm-operator">?</span> <span class="cm-variable">console</span>.<span class="cm-property">log</span>(<span class="cm-string">"闰年"</span>) : <span class="cm-variable">console</span>.<span class="cm-property">log</span>(<span class="cm-string">"平年"</span>);</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">56</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;  }</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">57</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-comment">// 判断</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">58</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-keyword">function</span> <span class="cm-def">isLeapYear</span>(<span class="cm-def">year</span>) {</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">59</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-keyword">return</span> <span class="cm-variable-2">year</span> <span class="cm-operator">%</span> <span class="cm-number">4</span> <span class="cm-operator">==</span> <span class="cm-number">0</span> <span class="cm-operator">||</span> <span class="cm-variable-2">year</span> <span class="cm-operator">%</span> <span class="cm-number">100</span> <span class="cm-operator">==</span> <span class="cm-number">0</span> <span class="cm-operator">&amp;&amp;</span> <span class="cm-variable-2">year</span> <span class="cm-operator">%</span> <span class="cm-number">400</span> <span class="cm-operator">!=</span> <span class="cm-number">0</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 27px;">60</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;  }</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 27px;">61</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">script</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	</div>
	</div>
	</div>
	</div>
	</div>
	<div
		style="position: absolute; height: 0px; width: 1px; border-bottom-width: 0px; border-bottom-style: solid; border-bottom-color: transparent; top: 1464px;">
	</div>
	<div class="CodeMirror-gutters" style="height: 1464px; left: 0px;">
		<div class="CodeMirror-gutter CodeMirror-linenumbers" style="width: 35px;"></div>
	</div>
	</div>
	</div>
	</pre>
	<h3 id='2两数计算'><span>2.【两数计算】</span></h3>
	<p><span>1） 使用HTML完成页面内容，界面如题2图：</span></p>
	<p><img src="../../../private/var/folders/hc/3hxhhd1n7clbtysw7n1t0hpc0000gn/T/com.kingsoft.wpsoffice.mac/wps-liu/ksohtml//wps2.jpg"
			referrerpolicy="no-referrer" alt="img"><span> </span></p>
	<p><span>题2图</span></p>
	<pre class="md-fences md-end-block md-fences-with-lineno ty-contain-cm modeLoaded" spellcheck="false" lang="html"
		style="break-inside: unset;"><div class="CodeMirror cm-s-inner cm-s-null-scroll CodeMirror-wrap" lang="html"><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 10px; left: 40px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: currentcolor;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 36px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: currentcolor;"><div class="CodeMirror-measure"><div class="CodeMirror-linenumber CodeMirror-gutter-elt"><div>26</div></div></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation" style=""><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: -36px; width: 36px;"></div><div class="CodeMirror-gutter-wrapper CodeMirror-activeline-gutter" style="left: -36px;"><div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show" style="left: 0px; width: 27px;">1</div></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">h3</span><span class="cm-tag cm-bracket">&gt;</span>计算<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">h3</span><span class="cm-tag cm-bracket">&gt;&lt;</span><span class="cm-tag">hr</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">2</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">div</span> <span class="cm-attribute">class</span>=<span class="cm-string">"main"</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">3</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">div</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">4</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">label</span> <span class="cm-attribute">for</span>=<span class="cm-string">"num1"</span><span class="cm-tag cm-bracket">&gt;</span>请输入第一个数：<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">label</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">5</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">input</span> <span class="cm-attribute">type</span>=<span class="cm-string">"text"</span> <span class="cm-attribute">id</span>=<span class="cm-string">"num1"</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">6</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">div</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">7</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">div</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">8</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">label</span> <span class="cm-attribute">for</span>=<span class="cm-string">"num2"</span><span class="cm-tag cm-bracket">&gt;</span>请输入第二个数：<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">label</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">9</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">input</span> <span class="cm-attribute">type</span>=<span class="cm-string">"text"</span> <span class="cm-attribute">id</span>=<span class="cm-string">"num2"</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 27px;">10</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">div</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">11</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">div</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">12</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">label</span> <span class="cm-attribute">for</span>=<span class="cm-string">"opts"</span><span class="cm-tag cm-bracket">&gt;</span>请选择计算类型：<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">label</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">13</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">select</span> <span class="cm-attribute">name</span>=<span class="cm-string">"oper"</span> <span class="cm-attribute">id</span>=<span class="cm-string">"opts"</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">14</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">option</span> <span class="cm-attribute">value</span>=<span class="cm-string">"+"</span> <span class="cm-attribute">selected</span><span class="cm-tag cm-bracket">&gt;</span>+<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">option</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">15</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">option</span> <span class="cm-attribute">value</span>=<span class="cm-string">"-"</span><span class="cm-tag cm-bracket">&gt;</span>-<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">option</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">16</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">option</span> <span class="cm-attribute">value</span>=<span class="cm-string">"*"</span><span class="cm-tag cm-bracket">&gt;</span>*<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">option</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">17</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">option</span> <span class="cm-attribute">value</span>=<span class="cm-string">"/"</span><span class="cm-tag cm-bracket">&gt;</span>/<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">option</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">18</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">select</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">19</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">div</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 27px;">20</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">div</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">21</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">button</span> <span class="cm-attribute">onclick</span>=<span class="cm-string">"jisuan()"</span><span class="cm-tag cm-bracket">&gt;</span>=<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">button</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">22</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">div</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">23</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">div</span> <span class="cm-attribute">id</span>=<span class="cm-string">"resultDiv"</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">24</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp;  结果是：<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">span</span> <span class="cm-attribute">id</span>=<span class="cm-string">"result"</span><span class="cm-tag cm-bracket">&gt;&lt;/</span><span class="cm-tag">span</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">25</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">div</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 27px;">26</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">div</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	</div>
	</div>
	</div>
	</div>
	</div>
	<div
		style="position: absolute; height: 0px; width: 1px; border-bottom-width: 0px; border-bottom-style: solid; border-bottom-color: transparent; top: 624px;">
	</div>
	<div class="CodeMirror-gutters" style="height: 624px; left: 0px;">
		<div class="CodeMirror-gutter CodeMirror-linenumbers" style="width: 35px;"></div>
	</div>
	</div>
	</div>
	</pre>
	<p><span>2） 使用CSS修饰页面内容，使得：</span></p>
	<p><span>（1） 标题为三级，颜色红色，居中，字号24px；</span></p>
	<pre class="md-fences md-end-block md-fences-with-lineno ty-contain-cm modeLoaded" spellcheck="false"
		lang="html"><div class="CodeMirror cm-s-inner cm-s-null-scroll CodeMirror-wrap" lang="html"><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 10px; left: 31px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: currentcolor;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 27px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: currentcolor;"><div class="CodeMirror-measure"><div class="CodeMirror-linenumber CodeMirror-gutter-elt"><div>1</div></div></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation"><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: -27px; width: 27px;"></div><div class="CodeMirror-gutter-wrapper CodeMirror-activeline-gutter" style="left: -27px;"><div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show" style="left: 0px; width: 18px;">1</div></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">h3</span><span class="cm-tag cm-bracket">&gt;</span>计算<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">h3</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	</div>
	</div>
	</div>
	</div>
	</div>
	<div
		style="position: absolute; height: 0px; width: 1px; border-bottom-width: 0px; border-bottom-style: solid; border-bottom-color: transparent; top: 24px;">
	</div>
	<div class="CodeMirror-gutters" style="height: 24px; left: 0px;">
		<div class="CodeMirror-gutter CodeMirror-linenumbers" style="width: 26px;"></div>
	</div>
	</div>
	</div>
	</pre>
	<pre class="md-fences md-end-block md-fences-with-lineno ty-contain-cm modeLoaded" spellcheck="false"
		lang="css"><div class="CodeMirror cm-s-inner cm-s-null-scroll CodeMirror-wrap" lang="css"><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 10px; left: 31px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: currentcolor;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 27px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: currentcolor;"><div class="CodeMirror-measure"><div class="CodeMirror-linenumber CodeMirror-gutter-elt"><div>5</div></div></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation" style=""><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: -27px; width: 27px;"></div><div class="CodeMirror-gutter-wrapper CodeMirror-activeline-gutter" style="left: -27px;"><div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show" style="left: 0px; width: 18px;">1</div></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag">h3</span> {</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">2</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-property">color</span>: <span class="cm-keyword">red</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">3</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-property">text-align</span>: <span class="cm-atom">center</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">4</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-property">font-size</span>: <span class="cm-number">24px</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 18px;">5</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;">}</span></pre>
	</div>
	</div>
	</div>
	</div>
	</div>
	</div>
	<div
		style="position: absolute; height: 0px; width: 1px; border-bottom-width: 0px; border-bottom-style: solid; border-bottom-color: transparent; top: 120px;">
	</div>
	<div class="CodeMirror-gutters" style="height: 120px; left: 0px;">
		<div class="CodeMirror-gutter CodeMirror-linenumbers" style="width: 26px;"></div>
	</div>
	</div>
	</div>
	</pre>
	<p><span>（2） 分割线颜色为蓝色，宽度80%，大小为2；</span></p>
	<pre class="md-fences md-end-block md-fences-with-lineno ty-contain-cm modeLoaded" spellcheck="false"
		lang="css"><div class="CodeMirror cm-s-inner cm-s-null-scroll CodeMirror-wrap" lang="css"><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 10px; left: 31px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: currentcolor;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 27px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: currentcolor;"><div class="CodeMirror-measure"><div class="CodeMirror-linenumber CodeMirror-gutter-elt"><div>5</div></div></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation" style=""><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: -27px; width: 27px;"></div><div class="CodeMirror-gutter-wrapper CodeMirror-activeline-gutter" style="left: -27px;"><div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show" style="left: 0px; width: 18px;">1</div></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag">hr</span>{</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">2</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;<span class="cm-property">color</span>:<span class="cm-keyword">blue</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">3</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;<span class="cm-property">width</span>:<span class="cm-number">80%</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">4</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;<span class="cm-property">size</span>:<span class="cm-number">2</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 18px;">5</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;">}</span></pre>
	</div>
	</div>
	</div>
	</div>
	</div>
	</div>
	<div
		style="position: absolute; height: 0px; width: 1px; border-bottom-width: 0px; border-bottom-style: solid; border-bottom-color: transparent; top: 120px;">
	</div>
	<div class="CodeMirror-gutters" style="height: 120px; left: 0px;">
		<div class="CodeMirror-gutter CodeMirror-linenumbers" style="width: 26px;"></div>
	</div>
	</div>
	</div>
	</pre>
	<p><span>（3） 计算区背景颜色为#ecf5ff，字体楷体，字号20px，所有内容居中；</span></p>
	<pre class="md-fences md-end-block md-fences-with-lineno ty-contain-cm modeLoaded" spellcheck="false"
		lang="css"><div class="CodeMirror cm-s-inner cm-s-null-scroll CodeMirror-wrap" lang="css"><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 10px; left: 31px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: currentcolor;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 27px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: currentcolor;"><div class="CodeMirror-measure"><div class="CodeMirror-linenumber CodeMirror-gutter-elt"><div>5</div></div></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation" style=""><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: -27px; width: 27px;"></div><div class="CodeMirror-gutter-wrapper CodeMirror-activeline-gutter" style="left: -27px;"><div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show" style="left: 0px; width: 18px;">1</div></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-qualifier">.main</span> {</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">2</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-property">background-color</span>: <span class="cm-atom">#ecf5ff</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">3</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-property">font</span>: <span class="cm-number">20px</span> <span class="cm-string">"KaiTi"</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">4</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-property">text-align</span>: <span class="cm-atom">center</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 18px;">5</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;">}</span></pre>
	</div>
	</div>
	</div>
	</div>
	</div>
	</div>
	<div
		style="position: absolute; height: 0px; width: 1px; border-bottom-width: 0px; border-bottom-style: solid; border-bottom-color: transparent; top: 120px;">
	</div>
	<div class="CodeMirror-gutters" style="height: 120px; left: 0px;">
		<div class="CodeMirror-gutter CodeMirror-linenumbers" style="width: 26px;"></div>
	</div>
	</div>
	</div>
	</pre>
	<p><span>（4） 按钮宽度100px，背景色#00beff，字号20px，圆框边角10px；</span></p>
	<pre class="md-fences md-end-block md-fences-with-lineno ty-contain-cm modeLoaded" spellcheck="false"
		lang="css"><div class="CodeMirror cm-s-inner cm-s-null-scroll CodeMirror-wrap" lang="css"><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 10px; left: 31px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: currentcolor;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 27px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: currentcolor;"><div class="CodeMirror-measure"><div class="CodeMirror-linenumber CodeMirror-gutter-elt"><div>6</div></div></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation" style=""><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: -27px; width: 27px;"></div><div class="CodeMirror-gutter-wrapper CodeMirror-activeline-gutter" style="left: -27px;"><div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show" style="left: 0px; width: 18px;">1</div></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag">button</span> {</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">2</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-property">width</span>: <span class="cm-number">100px</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">3</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-property">background-color</span>: <span class="cm-atom">#00beff</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">4</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-property">border-radius</span>: <span class="cm-number">10px</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">5</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-property">font-size</span>: <span class="cm-number">20px</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 18px;">6</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;">}</span></pre>
	</div>
	</div>
	</div>
	</div>
	</div>
	</div>
	<div
		style="position: absolute; height: 0px; width: 1px; border-bottom-width: 0px; border-bottom-style: solid; border-bottom-color: transparent; top: 144px;">
	</div>
	<div class="CodeMirror-gutters" style="height: 144px; left: 0px;">
		<div class="CodeMirror-gutter CodeMirror-linenumbers" style="width: 26px;"></div>
	</div>
	</div>
	</div>
	</pre>
	<p><span>3）用户输入第一个数和第二个数，根据用户的选择（加减乘除）将计算结果显示到按钮的下面。</span></p>
	<pre class="md-fences md-end-block md-fences-with-lineno ty-contain-cm modeLoaded" spellcheck="false" lang="js"
		style="break-inside: unset;"><div class="CodeMirror cm-s-inner cm-s-null-scroll CodeMirror-wrap" lang="js"><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 10px; left: 40px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: currentcolor;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 36px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: currentcolor;"><div class="CodeMirror-measure"><pre><span>xxxxxxxxxx</span></pre>
	<div class="CodeMirror-linenumber CodeMirror-gutter-elt">
		<div>16</div>
	</div>
	</div>
	<div class="CodeMirror-measure"></div>
	<div style="position: relative; z-index: 1;"></div>
	<div class="CodeMirror-code" role="presentation" style="">
		<div class="CodeMirror-activeline" style="position: relative;">
			<div class="CodeMirror-activeline-background CodeMirror-linebackground"></div>
			<div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: -36px; width: 36px;">
			</div>
			<div class="CodeMirror-gutter-wrapper CodeMirror-activeline-gutter" style="left: -36px;">
				<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
					style="left: 0px; width: 27px;">1</div>
			</div>
			<pre class=" CodeMirror-line "
				role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-keyword">function</span> <span class="cm-def">jisuan</span>() {</span></pre>
		</div>
		<div style="position: relative;">
			<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
				<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">2</div>
			</div>
			<pre class=" CodeMirror-line "
				role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-comment">// 获取计算类型</span></span></pre>
		</div>
		<div style="position: relative;">
			<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
				<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">3</div>
			</div>
			<pre class=" CodeMirror-line "
				role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-keyword">var</span> <span class="cm-def">option</span> <span class="cm-operator">=</span> <span class="cm-variable">opts</span>.<span class="cm-property">options</span>[<span class="cm-variable">opts</span>.<span class="cm-property">selectedIndex</span>].<span class="cm-property">value</span>;</span></pre>
		</div>
		<div style="position: relative;">
			<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
				<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">4</div>
			</div>
			<pre class=" CodeMirror-line "
				role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-comment">// 初始化计算结果</span></span></pre>
		</div>
		<div style="position: relative;">
			<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
				<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">5</div>
			</div>
			<pre class=" CodeMirror-line "
				role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-keyword">var</span> <span class="cm-def">res</span> <span class="cm-operator">=</span> <span class="cm-number">0</span>;</span></pre>
		</div>
		<div style="position: relative;">
			<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
				<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">6</div>
			</div>
			<pre class=" CodeMirror-line "
				role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-comment">// 将获取的第一个数和第二个数转为整型</span></span></pre>
		</div>
		<div style="position: relative;">
			<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
				<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">7</div>
			</div>
			<pre class=" CodeMirror-line "
				role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-keyword">var</span> <span class="cm-def">n1</span> <span class="cm-operator">=</span> <span class="cm-variable">parseInt</span>(<span class="cm-variable">num1</span>.<span class="cm-property">value</span>);</span></pre>
		</div>
		<div style="position: relative;">
			<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
				<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">8</div>
			</div>
			<pre class=" CodeMirror-line "
				role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-keyword">var</span> <span class="cm-def">n2</span> <span class="cm-operator">=</span> <span class="cm-variable">parseInt</span>(<span class="cm-variable">num2</span>.<span class="cm-property">value</span>);</span></pre>
		</div>
		<div style="position: relative;">
			<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
				<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">9</div>
			</div>
			<pre class=" CodeMirror-line "
				role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-keyword">switch</span> (<span class="cm-variable-2">option</span>) {</span></pre>
		</div>
		<div style="position: relative;">
			<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
				<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
					style="left: 0px; width: 27px;">10</div>
			</div>
			<pre class=" CodeMirror-line "
				role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-keyword">case</span> <span class="cm-string">"+"</span>: <span class="cm-variable-2">res</span> <span class="cm-operator">=</span> <span class="cm-variable-2">n1</span> <span class="cm-operator">+</span> <span class="cm-variable-2">n2</span>; <span class="cm-keyword">break</span>;</span></pre>
		</div>
		<div style="position: relative;">
			<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
				<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">11</div>
			</div>
			<pre class=" CodeMirror-line "
				role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-keyword">case</span> <span class="cm-string">"-"</span>: <span class="cm-variable-2">res</span> <span class="cm-operator">=</span> <span class="cm-variable-2">n1</span> <span class="cm-operator">-</span> <span class="cm-variable-2">n2</span>; <span class="cm-keyword">break</span>;</span></pre>
		</div>
		<div style="position: relative;">
			<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
				<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">12</div>
			</div>
			<pre class=" CodeMirror-line "
				role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-keyword">case</span> <span class="cm-string">"*"</span>: <span class="cm-variable-2">res</span> <span class="cm-operator">=</span> <span class="cm-variable-2">n1</span> <span class="cm-operator">*</span> <span class="cm-variable-2">n2</span>; <span class="cm-keyword">break</span>;</span></pre>
		</div>
		<div style="position: relative;">
			<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
				<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">13</div>
			</div>
			<pre class=" CodeMirror-line "
				role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-keyword">case</span> <span class="cm-string">"/"</span>: <span class="cm-variable-2">res</span> <span class="cm-operator">=</span> <span class="cm-variable-2">n1</span> <span class="cm-operator">/</span> <span class="cm-variable-2">n2</span>; <span class="cm-keyword">break</span>;</span></pre>
		</div>
		<div style="position: relative;" class="">
			<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
				<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">14</div>
			</div>
			<pre class=" CodeMirror-line "
				role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;  }</span></pre>
		</div>
		<div style="position: relative;">
			<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
				<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">15</div>
			</div>
			<pre class=" CodeMirror-line "
				role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-variable">result</span>.<span class="cm-property">innerText</span> <span class="cm-operator">=</span> <span class="cm-variable-2">res</span>;</span></pre>
		</div>
		<div class="" style="position: relative;">
			<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
				<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
					style="left: 0px; width: 27px;">16</div>
			</div>
			<pre class=" CodeMirror-line "
				role="presentation"><span role="presentation" style="padding-right: 0.1px;">}</span></pre>
		</div>
	</div>
	</div>
	</div>
	</div>
	</div>
	<div
		style="position: absolute; height: 0px; width: 1px; border-bottom-width: 0px; border-bottom-style: solid; border-bottom-color: transparent; top: 384px;">
	</div>
	<div class="CodeMirror-gutters" style="height: 384px;">
		<div class="CodeMirror-gutter CodeMirror-linenumbers" style="width: 35px;"></div>
	</div>
	</div>
	</div>
	</pre>
	<blockquote>
		<p style='color:#f00;font-size:30px'>整体代码如下
		<p>
	</blockquote>
	<h4 id='完整代码-2'><span>完整代码</span></h4>
	<pre class="md-fences md-end-block md-fences-with-lineno ty-contain-cm modeLoaded" spellcheck="false" lang="html"
		style="break-inside: unset;"><div class="CodeMirror cm-s-inner cm-s-null-scroll CodeMirror-wrap" lang="html"><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 10px; left: 40px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: currentcolor;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 36px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: currentcolor;"><div class="CodeMirror-measure"><div class="CodeMirror-linenumber CodeMirror-gutter-elt"><div>85</div></div></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation" style=""><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: -36px; width: 36px;"></div><div class="CodeMirror-gutter-wrapper CodeMirror-activeline-gutter" style="left: -36px;"><div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show" style="left: 0px; width: 27px;">1</div></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment">&lt;!-- </span></span></pre>
	</div>
	<div class="" style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">2</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment">1） 使用HTML完成页面内容，界面如题2图：</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">3</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment">2） 使用CSS修饰页面内容，使得：</span></span></pre>
	</div>
	<div style="position: relative;" class="">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">4</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment">（1） 标题为三级，颜色红色，居中，字号24px；</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">5</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment">（2） 分割线颜色为蓝色，宽度80%，大小为2；</span></span></pre>
	</div>
	<div style="position: relative;" class="">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">6</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment">（3） 计算区背景颜色为#ecf5ff，字体楷体，字号20px，所有内容居中；</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">7</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment">（4） 按钮宽度100px，背景色#00beff，字号20px，圆框边角10px；</span></span></pre>
	</div>
	<div style="position: relative;" class="">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">8</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment">3）用户输入第一个数和第二个数，根据用户的选择（加减乘除）将计算结果显示到按钮的下面。</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">9</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment">--&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 27px;">10</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">html</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">11</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">head</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">12</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">style</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">13</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag">h3</span> {</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">14</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-property">color</span>: <span class="cm-keyword">red</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">15</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-property">text-align</span>: <span class="cm-atom">center</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">16</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-property">font-size</span>: <span class="cm-number">24px</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">17</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp;  }</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">18</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag">hr</span> {</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">19</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-property">width</span>: <span class="cm-number">80%</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 27px;">20</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-property">color</span>: <span class="cm-keyword">blue</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">21</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-property">size</span>: <span class="cm-number">2</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">22</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp;  }</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">23</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-qualifier">.main</span> {</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">24</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-property">background-color</span>: <span class="cm-atom">#ecf5ff</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">25</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-property">font</span>: <span class="cm-number">20px</span> <span class="cm-string">"KaiTi"</span>; </span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">26</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-property">text-align</span>: <span class="cm-atom">center</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">27</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp;  }</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">28</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag">button</span> {</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">29</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-property">width</span>: <span class="cm-number">100px</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 27px;">30</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-property">background-color</span>: <span class="cm-atom">#00beff</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">31</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-property">font-size</span>: <span class="cm-number">20px</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">32</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-property">border-radius</span>: <span class="cm-number">10px</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">33</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp;  }</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">34</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">style</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">35</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">head</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">36</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">body</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">37</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">h3</span><span class="cm-tag cm-bracket">&gt;</span>计算<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">h3</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">38</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">hr</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">39</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">div</span> <span class="cm-attribute">class</span>=<span class="cm-string">"main"</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 27px;">40</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">div</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">41</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">label</span> <span class="cm-attribute">for</span>=<span class="cm-string">"num1"</span><span class="cm-tag cm-bracket">&gt;</span>请输入第一个数：<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">label</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">42</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">input</span> <span class="cm-attribute">type</span>=<span class="cm-string">"text"</span> <span class="cm-attribute">id</span>=<span class="cm-string">"num1"</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">43</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">div</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">44</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">div</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">45</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">label</span> <span class="cm-attribute">for</span>=<span class="cm-string">"num2"</span><span class="cm-tag cm-bracket">&gt;</span>请输入第二个数：<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">label</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">46</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">input</span> <span class="cm-attribute">type</span>=<span class="cm-string">"text"</span> <span class="cm-attribute">id</span>=<span class="cm-string">"num2"</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">47</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">div</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">48</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">div</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">49</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">label</span> <span class="cm-attribute">for</span>=<span class="cm-string">"opts"</span><span class="cm-tag cm-bracket">&gt;</span>请选择计算类型<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">label</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 27px;">50</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">select</span> <span class="cm-attribute">name</span>=<span class="cm-string">"oper"</span> <span class="cm-attribute">id</span>=<span class="cm-string">"opts"</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">51</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">option</span> <span class="cm-attribute">value</span>=<span class="cm-string">"+"</span> <span class="cm-attribute">selected</span><span class="cm-tag cm-bracket">&gt;</span>+<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">option</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">52</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">option</span> <span class="cm-attribute">value</span>=<span class="cm-string">"-"</span> <span class="cm-attribute">selected</span><span class="cm-tag cm-bracket">&gt;</span>-<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">option</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">53</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">option</span> <span class="cm-attribute">value</span>=<span class="cm-string">"*"</span> <span class="cm-attribute">selected</span><span class="cm-tag cm-bracket">&gt;</span>*<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">option</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">54</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">option</span> <span class="cm-attribute">value</span>=<span class="cm-string">"/"</span> <span class="cm-attribute">selected</span><span class="cm-tag cm-bracket">&gt;</span>/<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">option</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">55</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">select</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">56</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">div</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">57</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">div</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">58</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">button</span> <span class="cm-attribute">onclick</span>=<span class="cm-string">"jisuan()"</span><span class="cm-tag cm-bracket">&gt;</span>=<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">button</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">59</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">div</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 27px;">60</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">div</span> <span class="cm-attribute">id</span>=<span class="cm-string">"resultDiv"</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">61</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;  结果是：<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">span</span> <span class="cm-attribute">id</span>=<span class="cm-string">"result"</span><span class="cm-tag cm-bracket">&gt;&lt;/</span><span class="cm-tag">span</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">62</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">div</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">63</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">div</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">64</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">body</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">65</div>
		</div>
		<pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="" cm-zwsp="">
</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">66</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">html</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">67</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">script</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">68</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-comment">// 用户输入第一个数和第二个数，根据用户的选择（加减乘除）将计算结果显示到按钮的下面。</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">69</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-keyword">function</span> <span class="cm-def">jisuan</span>() {</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 27px;">70</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-comment">// 获取计算类型</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">71</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-keyword">var</span> <span class="cm-def">option</span> <span class="cm-operator">=</span> <span class="cm-variable">opts</span>.<span class="cm-property">options</span>[<span class="cm-variable">opts</span>.<span class="cm-property">selectedIndex</span>].<span class="cm-property">value</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">72</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-comment">// 初始化计算结果</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">73</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-keyword">var</span> <span class="cm-def">res</span> <span class="cm-operator">=</span> <span class="cm-number">0</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">74</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-comment">// 将获取的第一个数和第二个数转为整型</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">75</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-keyword">var</span> <span class="cm-def">n1</span> <span class="cm-operator">=</span> <span class="cm-variable">parseInt</span>(<span class="cm-variable">num1</span>.<span class="cm-property">value</span>);</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">76</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-keyword">var</span> <span class="cm-def">n2</span> <span class="cm-operator">=</span> <span class="cm-variable">parseInt</span>(<span class="cm-variable">num2</span>.<span class="cm-property">value</span>);</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">77</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-keyword">switch</span> (<span class="cm-variable-2">option</span>) {</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">78</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-keyword">case</span> <span class="cm-string">"+"</span>: <span class="cm-variable-2">res</span> <span class="cm-operator">=</span> <span class="cm-variable-2">n1</span> <span class="cm-operator">+</span> <span class="cm-variable-2">n2</span>; <span class="cm-keyword">break</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">79</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-keyword">case</span> <span class="cm-string">"-"</span>: <span class="cm-variable-2">res</span> <span class="cm-operator">=</span> <span class="cm-variable-2">n1</span> <span class="cm-operator">-</span> <span class="cm-variable-2">n2</span>; <span class="cm-keyword">break</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 27px;">80</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-keyword">case</span> <span class="cm-string">"*"</span>: <span class="cm-variable-2">res</span> <span class="cm-operator">=</span> <span class="cm-variable-2">n1</span> <span class="cm-operator">*</span> <span class="cm-variable-2">n2</span>; <span class="cm-keyword">break</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">81</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-keyword">case</span> <span class="cm-string">"/"</span>: <span class="cm-variable-2">res</span> <span class="cm-operator">=</span> <span class="cm-variable-2">n1</span> <span class="cm-operator">/</span> <span class="cm-variable-2">n2</span>; <span class="cm-keyword">break</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">82</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp;  }</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">83</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-variable">result</span>.<span class="cm-property">innerText</span> <span class="cm-operator">=</span> <span class="cm-variable-2">res</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">84</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;  }</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 27px;">85</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">script</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	</div>
	</div>
	</div>
	</div>
	</div>
	<div
		style="position: absolute; height: 0px; width: 1px; border-bottom-width: 0px; border-bottom-style: solid; border-bottom-color: transparent; top: 2040px;">
	</div>
	<div class="CodeMirror-gutters" style="height: 2040px; left: 0px;">
		<div class="CodeMirror-gutter CodeMirror-linenumbers" style="width: 35px;"></div>
	</div>
	</div>
	</div>
	</pre>
	<h3 id='3猜价格'><span>3.【猜价格】</span></h3>
	<p><span>1） 使用HTML完成页面内容，界面如题3图：</span></p>
	<p><img src="../../../private/var/folders/hc/3hxhhd1n7clbtysw7n1t0hpc0000gn/T/com.kingsoft.wpsoffice.mac/wps-liu/ksohtml//wps3.jpg"
			referrerpolicy="no-referrer" alt="img"><span> </span><img
			src="../../../private/var/folders/hc/3hxhhd1n7clbtysw7n1t0hpc0000gn/T/com.kingsoft.wpsoffice.mac/wps-liu/ksohtml//wps4.jpg"
			referrerpolicy="no-referrer" alt="img"></p>
	<p><span>题3图</span></p>
	<pre class="md-fences md-end-block md-fences-with-lineno ty-contain-cm modeLoaded" spellcheck="false" lang="html"
		style="break-inside: unset;"><div class="CodeMirror cm-s-inner cm-s-null-scroll CodeMirror-wrap" lang="html"><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 10px; left: 40px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: currentcolor;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 36px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: currentcolor;"><div class="CodeMirror-measure"><div class="CodeMirror-linenumber CodeMirror-gutter-elt"><div>14</div></div></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation" style=""><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: -36px; width: 36px;"></div><div class="CodeMirror-gutter-wrapper CodeMirror-activeline-gutter" style="left: -36px;"><div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show" style="left: 0px; width: 27px;">1</div></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">h3</span><span class="cm-tag cm-bracket">&gt;</span>猜价格<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">h3</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">2</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">hr</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">3</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">div</span> <span class="cm-attribute">class</span>=<span class="cm-string">"main"</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">4</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">div</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">5</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">label</span> <span class="cm-attribute">for</span>=<span class="cm-string">"priceTxt"</span><span class="cm-tag cm-bracket">&gt;</span>请输入价格：<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">label</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">6</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">input</span> <span class="cm-attribute">type</span>=<span class="cm-string">"text"</span> <span class="cm-attribute">id</span>=<span class="cm-string">"priceTxt"</span> <span class="cm-attribute">placeholder</span>=<span class="cm-string">"请输入价格"</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">7</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">div</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">8</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">div</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">9</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">button</span> <span class="cm-attribute">id</span>=<span class="cm-string">"guessBtn"</span> <span class="cm-attribute">onclick</span>=<span class="cm-string">"guess()"</span><span class="cm-tag cm-bracket">&gt;</span>猜一下<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">button</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 27px;">10</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">div</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">11</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">div</span> <span class="cm-attribute">id</span>=<span class="cm-string">"resultDiv"</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">12</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp;  结果是：<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">span</span> <span class="cm-attribute">id</span>=<span class="cm-string">"result"</span><span class="cm-tag cm-bracket">&gt;&lt;/</span><span class="cm-tag">span</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">13</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">div</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 27px;">14</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">div</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	</div>
	</div>
	</div>
	</div>
	</div>
	<div
		style="position: absolute; height: 0px; width: 1px; border-bottom-width: 0px; border-bottom-style: solid; border-bottom-color: transparent; top: 336px;">
	</div>
	<div class="CodeMirror-gutters" style="height: 336px; left: 0px;">
		<div class="CodeMirror-gutter CodeMirror-linenumbers" style="width: 35px;"></div>
	</div>
	</div>
	</div>
	</pre>
	<p><span>2） 使用CSS修饰页面内容，使得：</span></p>
	<p><span>（1） 标题为三级，颜色红色，居中，字号24px；</span></p>
	<pre class="md-fences md-end-block md-fences-with-lineno ty-contain-cm modeLoaded" spellcheck="false"
		lang="html"><div class="CodeMirror cm-s-inner cm-s-null-scroll CodeMirror-wrap" lang="html"><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 10px; left: 31px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: currentcolor;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 27px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: currentcolor;"><div class="CodeMirror-measure"><div class="CodeMirror-linenumber CodeMirror-gutter-elt"><div>1</div></div></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation"><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: -27px; width: 27px;"></div><div class="CodeMirror-gutter-wrapper CodeMirror-activeline-gutter" style="left: -27px;"><div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show" style="left: 0px; width: 18px;">1</div></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">h3</span><span class="cm-tag cm-bracket">&gt;</span>猜价格<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">h3</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	</div>
	</div>
	</div>
	</div>
	</div>
	<div
		style="position: absolute; height: 0px; width: 1px; border-bottom-width: 0px; border-bottom-style: solid; border-bottom-color: transparent; top: 24px;">
	</div>
	<div class="CodeMirror-gutters" style="height: 24px; left: 0px;">
		<div class="CodeMirror-gutter CodeMirror-linenumbers" style="width: 26px;"></div>
	</div>
	</div>
	</div>
	</pre>
	<pre class="md-fences md-end-block md-fences-with-lineno ty-contain-cm modeLoaded" spellcheck="false"
		lang="css"><div class="CodeMirror cm-s-inner cm-s-null-scroll CodeMirror-wrap" lang="css"><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 10px; left: 31px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: currentcolor;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 27px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: currentcolor;"><div class="CodeMirror-measure"><div class="CodeMirror-linenumber CodeMirror-gutter-elt"><div>5</div></div></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation" style=""><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: -27px; width: 27px;"></div><div class="CodeMirror-gutter-wrapper CodeMirror-activeline-gutter" style="left: -27px;"><div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show" style="left: 0px; width: 18px;">1</div></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag">h3</span> {</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">2</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-property">font-size</span>: <span class="cm-number">24px</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">3</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-property">color</span>: <span class="cm-keyword">red</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">4</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-property">text-align</span>: <span class="cm-atom">center</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 18px;">5</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;">}</span></pre>
	</div>
	</div>
	</div>
	</div>
	</div>
	</div>
	<div
		style="position: absolute; height: 0px; width: 1px; border-bottom-width: 0px; border-bottom-style: solid; border-bottom-color: transparent; top: 120px;">
	</div>
	<div class="CodeMirror-gutters" style="height: 120px; left: 0px;">
		<div class="CodeMirror-gutter CodeMirror-linenumbers" style="width: 26px;"></div>
	</div>
	</div>
	</div>
	</pre>
	<p><span>（2） 分割线颜色为蓝色，宽度80%，大小为2；</span></p>
	<pre class="md-fences md-end-block md-fences-with-lineno ty-contain-cm modeLoaded" spellcheck="false"
		lang="css"><div class="CodeMirror cm-s-inner cm-s-null-scroll CodeMirror-wrap" lang="css"><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 10px; left: 31px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: currentcolor;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 27px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: currentcolor;"><div class="CodeMirror-measure"><div class="CodeMirror-linenumber CodeMirror-gutter-elt"><div>5</div></div></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation" style=""><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: -27px; width: 27px;"></div><div class="CodeMirror-gutter-wrapper CodeMirror-activeline-gutter" style="left: -27px;"><div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show" style="left: 0px; width: 18px;">1</div></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag">hr</span>{</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">2</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;<span class="cm-property">color</span>:<span class="cm-keyword">blue</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">3</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;<span class="cm-property">width</span>:<span class="cm-number">80%</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">4</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;<span class="cm-property">size</span>:<span class="cm-number">2</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 18px;">5</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;">}</span></pre>
	</div>
	</div>
	</div>
	</div>
	</div>
	</div>
	<div
		style="position: absolute; height: 0px; width: 1px; border-bottom-width: 0px; border-bottom-style: solid; border-bottom-color: transparent; top: 120px;">
	</div>
	<div class="CodeMirror-gutters" style="height: 120px; left: 0px;">
		<div class="CodeMirror-gutter CodeMirror-linenumbers" style="width: 26px;"></div>
	</div>
	</div>
	</div>
	</pre>
	<p><span>（3） 计算区背景颜色为#ecf5ff，字体楷体，字号20px，所有内容居中；</span></p>
	<pre class="md-fences md-end-block md-fences-with-lineno ty-contain-cm modeLoaded" spellcheck="false"
		lang="css"><div class="CodeMirror cm-s-inner cm-s-null-scroll CodeMirror-wrap" lang="css"><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 10px; left: 31px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: currentcolor;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 27px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: currentcolor;"><div class="CodeMirror-measure"><div class="CodeMirror-linenumber CodeMirror-gutter-elt"><div>5</div></div></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation" style=""><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: -27px; width: 27px;"></div><div class="CodeMirror-gutter-wrapper CodeMirror-activeline-gutter" style="left: -27px;"><div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show" style="left: 0px; width: 18px;">1</div></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-qualifier">.main</span> {</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">2</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-property">background-color</span>: <span class="cm-atom">#ecf5ff</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">3</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-property">font</span>: <span class="cm-number">20px</span> <span class="cm-variable">KaiTi</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">4</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-property">text-align</span>: <span class="cm-atom">center</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 18px;">5</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;">}</span></pre>
	</div>
	</div>
	</div>
	</div>
	</div>
	</div>
	<div
		style="position: absolute; height: 0px; width: 1px; border-bottom-width: 0px; border-bottom-style: solid; border-bottom-color: transparent; top: 120px;">
	</div>
	<div class="CodeMirror-gutters" style="height: 120px; left: 0px;">
		<div class="CodeMirror-gutter CodeMirror-linenumbers" style="width: 26px;"></div>
	</div>
	</div>
	</div>
	</pre>
	<p><span>（4） 按钮宽度100px，背景色#00beff，字号20px，圆框边角10px；</span></p>
	<pre class="md-fences md-end-block md-fences-with-lineno ty-contain-cm modeLoaded" spellcheck="false"
		lang="css"><div class="CodeMirror cm-s-inner cm-s-null-scroll CodeMirror-wrap" lang="css"><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 10px; left: 31px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: currentcolor;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 27px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: currentcolor;"><div class="CodeMirror-measure"><div class="CodeMirror-linenumber CodeMirror-gutter-elt"><div>6</div></div></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation" style=""><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: -27px; width: 27px;"></div><div class="CodeMirror-gutter-wrapper CodeMirror-activeline-gutter" style="left: -27px;"><div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show" style="left: 0px; width: 18px;">1</div></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag">button</span> {</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">2</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-property">width</span>: <span class="cm-number">100px</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">3</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-property">background-color</span>: <span class="cm-atom">#00beff</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">4</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-property">border-radius</span>: <span class="cm-number">10px</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">5</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-property">font-size</span>: <span class="cm-number">20px</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 18px;">6</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;">}</span></pre>
	</div>
	</div>
	</div>
	</div>
	</div>
	</div>
	<div
		style="position: absolute; height: 0px; width: 1px; border-bottom-width: 0px; border-bottom-style: solid; border-bottom-color: transparent; top: 144px;">
	</div>
	<div class="CodeMirror-gutters" style="height: 144px; left: 0px;">
		<div class="CodeMirror-gutter CodeMirror-linenumbers" style="width: 26px;"></div>
	</div>
	</div>
	</div>
	</pre>
	<p><span>（5） 文本框宽150px，高30px；边框宽2px，实线，颜色#1c6ca1；</span></p>
	<pre class="md-fences md-end-block md-fences-with-lineno ty-contain-cm modeLoaded" spellcheck="false"
		lang="css"><div class="CodeMirror cm-s-inner cm-s-null-scroll CodeMirror-wrap" lang="css"><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 10px; left: 31px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: currentcolor;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 27px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: currentcolor;"><div class="CodeMirror-measure"><div class="CodeMirror-linenumber CodeMirror-gutter-elt"><div>5</div></div></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation" style=""><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: -27px; width: 27px;"></div><div class="CodeMirror-gutter-wrapper CodeMirror-activeline-gutter" style="left: -27px;"><div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show" style="left: 0px; width: 18px;">1</div></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag">input</span> {</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">2</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-property">width</span>: <span class="cm-number">150px</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">3</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-property">height</span>: <span class="cm-number">30px</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 18px;">4</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-property">border</span>: <span class="cm-number">2px</span> <span class="cm-atom">solid</span> <span class="cm-atom">#1c6ca1</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -27px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 18px;">5</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;">}</span></pre>
	</div>
	</div>
	</div>
	</div>
	</div>
	</div>
	<div
		style="position: absolute; height: 0px; width: 1px; border-bottom-width: 0px; border-bottom-style: solid; border-bottom-color: transparent; top: 120px;">
	</div>
	<div class="CodeMirror-gutters" style="height: 120px; left: 0px;">
		<div class="CodeMirror-gutter CodeMirror-linenumbers" style="width: 26px;"></div>
	</div>
	</div>
	</div>
	</pre>
	<p><span>3）使用JavaScript，完成：</span></p>
	<p><span>用户打开页面后，随机生成一个0-100的价格（整数），用户猜一个价格，点击按钮后告诉用户猜高了还是猜低了，显示在结果标签后。猜中时需要告诉用户信息“恭喜！猜对了，您一共猜了*次&#39;”。此时按钮变成“再猜一次”，重新生成一个价格并进行猜测。</span>
	</p>
	<pre class="md-fences md-end-block md-fences-with-lineno ty-contain-cm modeLoaded" spellcheck="false" lang="js"
		style="break-inside: unset;"><div class="CodeMirror cm-s-inner cm-s-null-scroll CodeMirror-wrap" lang="js"><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 10px; left: 40px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: currentcolor;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 36px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: currentcolor;"><div class="CodeMirror-measure"><div class="CodeMirror-linenumber CodeMirror-gutter-elt"><div>33</div></div></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation" style=""><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: -36px; width: 36px;"></div><div class="CodeMirror-gutter-wrapper CodeMirror-activeline-gutter" style="left: -36px;"><div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show" style="left: 0px; width: 27px;">1</div></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment">// 生成随机数</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">2</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-keyword">var</span> <span class="cm-def">realPrice</span> <span class="cm-operator">=</span> <span class="cm-variable">Math</span>.<span class="cm-property">round</span>(<span class="cm-variable">Math</span>.<span class="cm-property">random</span>() <span class="cm-operator">*</span> <span class="cm-number">100</span>);</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">3</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment">// 初始化猜的次数</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">4</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-keyword">var</span> <span class="cm-def">time</span> <span class="cm-operator">=</span> <span class="cm-number">1</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">5</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-keyword">function</span> <span class="cm-def">cai</span>() {</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">6</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-comment">// 获取用户输入的价格并转为整数</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">7</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-keyword">var</span> <span class="cm-def">price</span> <span class="cm-operator">=</span> <span class="cm-variable">parseInt</span>(<span class="cm-variable">priceText</span>.<span class="cm-property">value</span>);</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">8</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-comment">// 判断输入的价格是否合法</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">9</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-keyword">if</span> (<span class="cm-variable">isNaN</span>(<span class="cm-variable-2">price</span>)) {</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 27px;">10</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-variable">alert</span>(<span class="cm-string">"价格格式不对"</span>);</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">11</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-keyword">return</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">12</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;  }</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">13</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-comment">// 判断当前按钮是否为 猜一下还是 再猜一次</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">14</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-keyword">if</span> (<span class="cm-variable">btn</span>.<span class="cm-property">innerText</span> <span class="cm-operator">==</span> <span class="cm-string">"猜一下"</span>) {</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">15</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-comment">// 判断用户猜的价格</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">16</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-keyword">if</span> (<span class="cm-variable-2">price</span> <span class="cm-operator">&gt;</span> <span class="cm-variable">realPrice</span>) {</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">17</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-variable">result</span>.<span class="cm-property">innerText</span> <span class="cm-operator">=</span> <span class="cm-string">"猜高了"</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">18</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-variable">time</span><span class="cm-operator">++</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">19</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp;  } <span class="cm-keyword">else</span> <span class="cm-keyword">if</span> (<span class="cm-variable-2">price</span> <span class="cm-operator">&lt;</span> <span class="cm-variable">realPrice</span>) {</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 27px;">20</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-variable">result</span>.<span class="cm-property">innerText</span> <span class="cm-operator">=</span> <span class="cm-string">"猜低了"</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">21</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-variable">time</span><span class="cm-operator">++</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">22</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp;  } <span class="cm-keyword">else</span> {</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">23</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-variable">result</span>.<span class="cm-property">innerText</span> <span class="cm-operator">=</span> <span class="cm-string-2">`恭喜！猜对了,您一共猜了 ${</span><span class="cm-variable">time</span><span class="cm-string-2">}次`</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">24</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-comment">// 重置猜测次数1</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">25</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-variable">time</span> <span class="cm-operator">=</span> <span class="cm-number">1</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">26</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-variable">btn</span>.<span class="cm-property">innerText</span> <span class="cm-operator">=</span> <span class="cm-string">"再猜一次"</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">27</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-comment">// 重置随机数</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">28</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-variable">realPrice</span> <span class="cm-operator">=</span> <span class="cm-variable">Math</span>.<span class="cm-property">round</span>(<span class="cm-variable">Math</span>.<span class="cm-property">random</span>() <span class="cm-operator">*</span> <span class="cm-number">100</span>);</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">29</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp;  }</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 27px;">30</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;  } <span class="cm-keyword">else</span> {</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">31</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-variable">btn</span>.<span class="cm-property">innerText</span> <span class="cm-operator">=</span> <span class="cm-string">"猜一下"</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">32</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;  }</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 27px;">33</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;">}</span></pre>
	</div>
	</div>
	</div>
	</div>
	</div>
	</div>
	<div
		style="position: absolute; height: 0px; width: 1px; border-bottom-width: 0px; border-bottom-style: solid; border-bottom-color: transparent; top: 792px;">
	</div>
	<div class="CodeMirror-gutters" style="height: 792px; left: 0px;">
		<div class="CodeMirror-gutter CodeMirror-linenumbers" style="width: 35px;"></div>
	</div>
	</div>
	</div>
	</pre>
	<blockquote>
		<p style='color:#f00;font-size:30px'>整体代码如下
		<p>
	</blockquote>
	<h4 id='完整代码-3'><span>完整代码</span></h4>
	<pre class="md-fences md-end-block md-fences-with-lineno ty-contain-cm modeLoaded" spellcheck="false" lang="html"
		style="break-inside: unset;"><div class="CodeMirror cm-s-inner cm-s-null-scroll CodeMirror-wrap" lang="html"><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 10px; left: 40px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: currentcolor;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 36px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: currentcolor;"><div class="CodeMirror-measure"><div class="CodeMirror-linenumber CodeMirror-gutter-elt"><div>95</div></div></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation" style=""><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: -36px; width: 36px;"></div><div class="CodeMirror-gutter-wrapper CodeMirror-activeline-gutter" style="left: -36px;"><div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show" style="left: 0px; width: 27px;">1</div></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment">&lt;!--</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">2</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment">2） 使用CSS修饰页面内容，使得：</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">3</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment">（1） 标题为三级，颜色红色，居中，字号24px；</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">4</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment">（2） 分割线颜色为蓝色，宽度80%，大小为2；</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">5</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment">（3） 计算区背景颜色为#ecf5ff，字体楷体，字号20px，所有内容居中；</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">6</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment">（4） 按钮宽度100px，背景色#00beff，字号20px，圆框边角10px；</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">7</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment">（5） 文本框宽150px，高30px；边框宽2px，实线，颜色#1c6ca1；</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">8</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment">3）使用JavaScript，完成：</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">9</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment">用户打开页面后，随机生成一个0-100的价格（整数），用户猜一个价格，点击按钮后告诉用户猜高了还是猜低了，显示在结果标签后。猜中时需要告诉用户信息“恭喜！猜对了，您一共猜了*次'”。此时按钮变成“再猜一次”，重新生成一个价格并进行猜测。</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 27px;">10</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-comment">--&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">11</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">html</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">12</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">head</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">13</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">style</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">14</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag">h3</span> {</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">15</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-property">color</span>: <span class="cm-keyword">red</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">16</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-property">text-align</span>: <span class="cm-atom">center</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">17</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-property">font-size</span>: <span class="cm-number">24px</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">18</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp;  }</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">19</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag">hr</span> {</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 27px;">20</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-property">color</span>: <span class="cm-keyword">blue</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">21</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-property">width</span>: <span class="cm-number">80%</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">22</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-property">size</span>: <span class="cm-number">2px</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">23</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp;  }</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">24</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-qualifier">.main</span> {</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">25</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-property">background-color</span>: <span class="cm-atom">#ecf5ff</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">26</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-property">font</span>: <span class="cm-number">20px</span> <span class="cm-string">"楷体"</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">27</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-property">text-align</span>: <span class="cm-atom">center</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">28</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp;  }</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">29</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag">button</span> {</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 27px;">30</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-property">width</span>: <span class="cm-number">100px</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">31</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-property">background-color</span>: <span class="cm-atom">#00beff</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">32</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-property">font-size</span>: <span class="cm-number">20px</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">33</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-property">border-radius</span>: <span class="cm-number">10px</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">34</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp;  }</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">35</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag">input</span> {</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">36</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-property">width</span>: <span class="cm-number">150px</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">37</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-property">height</span>: <span class="cm-number">30px</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">38</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-property">border</span>: <span class="cm-number">2px</span> <span class="cm-atom">solid</span> <span class="cm-atom">#1c6ca1</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">39</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp;  }</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 27px;">40</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">style</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">41</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">head</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">42</div>
		</div>
		<pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="" cm-zwsp="">
</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">43</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">body</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">44</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">h3</span><span class="cm-tag cm-bracket">&gt;</span>猜价格<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">h3</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">45</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">hr</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">46</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">div</span> <span class="cm-attribute">class</span>=<span class="cm-string">"main"</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">47</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">div</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">48</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">label</span> <span class="cm-attribute">for</span>=<span class="cm-string">"priceText"</span><span class="cm-tag cm-bracket">&gt;</span>请输入价格：<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">label</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">49</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">input</span> <span class="cm-attribute">type</span>=<span class="cm-string">"text"</span> <span class="cm-attribute">id</span>=<span class="cm-string">"priceText"</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 27px;">50</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">div</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">51</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">div</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">52</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">button</span> <span class="cm-attribute">id</span>=<span class="cm-string">"btn"</span> <span class="cm-attribute">onclick</span>=<span class="cm-string">"cai()"</span><span class="cm-tag cm-bracket">&gt;</span>猜一下<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">button</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">53</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">div</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">54</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">div</span> <span class="cm-attribute">id</span>=<span class="cm-string">"resultDiv"</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">55</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;  结果是：<span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">span</span> <span class="cm-attribute">id</span>=<span class="cm-string">"result"</span><span class="cm-tag cm-bracket">&gt;&lt;/</span><span class="cm-tag">span</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">56</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">div</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">57</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">div</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">58</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">body</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">59</div>
		</div>
		<pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span cm-text="" cm-zwsp="">
</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 27px;">60</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">html</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">61</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;</span><span class="cm-tag">script</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">62</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-comment">// 生成随机数</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">63</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-keyword">var</span> <span class="cm-def">realPrice</span> <span class="cm-operator">=</span> <span class="cm-variable">Math</span>.<span class="cm-property">round</span>(<span class="cm-variable">Math</span>.<span class="cm-property">random</span>() <span class="cm-operator">*</span> <span class="cm-number">100</span>);</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">64</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-comment">// 初始化猜的次数</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">65</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-keyword">var</span> <span class="cm-def">time</span> <span class="cm-operator">=</span> <span class="cm-number">1</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">66</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp;<span class="cm-keyword">function</span> <span class="cm-def">cai</span>() {</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">67</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-comment">// 获取用户输入的价格并转为整数</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">68</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-keyword">var</span> <span class="cm-def">price</span> <span class="cm-operator">=</span> <span class="cm-variable">parseInt</span>(<span class="cm-variable">priceText</span>.<span class="cm-property">value</span>);</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">69</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-comment">// 判断输入的价格是否合法</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 27px;">70</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-keyword">if</span> (<span class="cm-variable">isNaN</span>(<span class="cm-variable-2">price</span>)) {</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">71</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-variable">alert</span>(<span class="cm-string">"价格格式不对"</span>);</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">72</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-keyword">return</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">73</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp;  }</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">74</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-comment">// 判断当前按钮是否为 猜一下还是 再猜一次</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">75</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-keyword">if</span> (<span class="cm-variable">btn</span>.<span class="cm-property">innerText</span> <span class="cm-operator">==</span> <span class="cm-string">"猜一下"</span>) {</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">76</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-comment">// 判断用户猜的价格</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">77</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-keyword">if</span> (<span class="cm-variable-2">price</span> <span class="cm-operator">&gt;</span> <span class="cm-variable">realPrice</span>) {</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">78</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-variable">result</span>.<span class="cm-property">innerText</span> <span class="cm-operator">=</span> <span class="cm-string">"猜高了"</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">79</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-variable">time</span><span class="cm-operator">++</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 27px;">80</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;  } <span class="cm-keyword">else</span> <span class="cm-keyword">if</span> (<span class="cm-variable-2">price</span> <span class="cm-operator">&lt;</span> <span class="cm-variable">realPrice</span>) {</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">81</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-variable">result</span>.<span class="cm-property">innerText</span> <span class="cm-operator">=</span> <span class="cm-string">"猜低了"</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">82</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-variable">time</span><span class="cm-operator">++</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">83</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;  } <span class="cm-keyword">else</span> {</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">84</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-variable">result</span>.<span class="cm-property">innerText</span> <span class="cm-operator">=</span> <span class="cm-string-2">`恭喜！猜对了,您一共猜了 ${</span><span class="cm-variable">time</span><span class="cm-string-2">}次`</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">85</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-comment">// 重置猜测次数1</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">86</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-variable">time</span> <span class="cm-operator">=</span> <span class="cm-number">1</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">87</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-variable">btn</span>.<span class="cm-property">innerText</span> <span class="cm-operator">=</span> <span class="cm-string">"再猜一次"</span>;</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">88</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-comment">// 重置随机数</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">89</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-variable">realPrice</span> <span class="cm-operator">=</span> <span class="cm-variable">Math</span>.<span class="cm-property">round</span>(<span class="cm-variable">Math</span>.<span class="cm-property">random</span>() <span class="cm-operator">*</span> <span class="cm-number">100</span>);</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 27px;">90</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;  }</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">91</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp;  } <span class="cm-keyword">else</span> {</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">92</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="cm-variable">btn</span>.<span class="cm-property">innerText</span> <span class="cm-operator">=</span> <span class="cm-string">"猜一下"</span></span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">93</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp; &nbsp; &nbsp;  }</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt" style="left: 0px; width: 27px;">94</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"> &nbsp;  }</span></pre>
	</div>
	<div style="position: relative;">
		<div class="CodeMirror-gutter-wrapper" style="left: -36px;">
			<div class="CodeMirror-linenumber CodeMirror-gutter-elt CodeMirror-linenumber-show"
				style="left: 0px; width: 27px;">95</div>
		</div>
		<pre class=" CodeMirror-line "
			role="presentation"><span role="presentation" style="padding-right: 0.1px;"><span class="cm-tag cm-bracket">&lt;/</span><span class="cm-tag">script</span><span class="cm-tag cm-bracket">&gt;</span></span></pre>
	</div>
	</div>
	</div>
	</div>
	</div>
	</div>
	<div
		style="position: absolute; height: 0px; width: 1px; border-bottom-width: 0px; border-bottom-style: solid; border-bottom-color: transparent; top: 2328px;">
	</div>
	<div class="CodeMirror-gutters" style="height: 2328px; left: 0px;">
		<div class="CodeMirror-gutter CodeMirror-linenumbers" style="width: 35px;"></div>
	</div>
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	</pre>
	<p>&nbsp;</p>
	<h3 id='4列表排序'><span>4.【列表排序】</span></h3>
	<p><span>1） 使用HTML完成页面内容，界面如题4图所示：</span></p>
	<p><span> </span><img
			src="../../../private/var/folders/hc/3hxhhd1n7clbtysw7n1t0hpc0000gn/T/com.kingsoft.wpsoffice.mac/wps-liu/ksohtml//wps5.jpg"
			referrerpolicy="no-referrer" alt="img"></p>
	<p><span>题4图</span></p>
	<p><span>2） 使用CSS修饰页面内容，使得：</span></p>
	<p><span>（1） 标题为三级，颜色红色，居中，字号24px；</span></p>
	<p><span>（2） 分割线颜色为蓝色，宽度80%，大小为2；</span></p>
	<p><span>（3） 计算区背景颜色为#ecf5ff，字体楷体，字号20px，所有内容居中；</span></p>
	<p><span>（4） 按钮宽度100px，背景色#00beff，字号20px，圆框边角10px；</span></p>
	<p><span>（5） 文本框宽150px，高30px；边框宽2px，实线，颜色#1c6ca1；</span></p>
	<p><span>3） 使用JavaScript编程，实现：</span></p>
	<p><span>用户输入一个0-100范围内的整数，如果输入非法数值需要给出提示。点击添加后，该整数添加到下面的列表最后。但点击排序按钮时，将这些数进行排序，排序后更新此列表。</span></p>
	<p><span> </span></p>
	<p>&nbsp;</p>
	<blockquote>
		<p style='color:#f00;font-size:30px'>整体代码如下
		<p>
	</blockquote>
	<h4 id='完整代码-4'><span>完整代码</span></h4>
	<h3 id='5列表中查找数'><span>5.【列表中查找数】</span></h3>
	<p><span>1） 使用HTML完成页面内容，界面如下：</span></p>
	<p><span> </span><img
			src="../../../private/var/folders/hc/3hxhhd1n7clbtysw7n1t0hpc0000gn/T/com.kingsoft.wpsoffice.mac/wps-liu/ksohtml//wps6.jpg"
			referrerpolicy="no-referrer" alt="img"><span> </span><img
			src="../../../private/var/folders/hc/3hxhhd1n7clbtysw7n1t0hpc0000gn/T/com.kingsoft.wpsoffice.mac/wps-liu/ksohtml//wps7.jpg"
			referrerpolicy="no-referrer" alt="img"></p>
	<p><span>题5图</span></p>
	<p><span>2） 使用CSS修饰页面内容，使得：</span></p>
	<p><span>（1） 标题为三级，颜色红色，居中，字号24px；</span></p>
	<p><span>（2） 分割线颜色为蓝色，宽度80%，大小为2；</span></p>
	<p><span>（3） 计算区背景颜色为#ecf5ff，字体楷体，字号20px，所有内容居中；</span></p>
	<p><span>（4） 按钮宽度100px，背景色#00beff，字号20px，圆框边角10px；</span></p>
	<p><span>（5） 文本框宽150px，高30px；边框宽2px，实线，颜色#1c6ca1；</span></p>
	<p><span>用户在文本框中输入一个数，如果该数不在下面的列表中，告诉用户“该数不存在”；如果该数存在，则查找该数在列表中的位置，并显示结果给用户（信息见上图）。</span></p>
	<p>&nbsp;</p>
	<p>&nbsp;</p>
	<p>&nbsp;</p>
	<blockquote>
		<p style='color:#f00;font-size:30px'>整体代码如下
		<p>
	</blockquote>
	<h4 id='完整代码-5'><span>完整代码</span></h4>
	</div>
	</div>
</body>

</html>